complete music theory cheat sheet.pdf
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MUSIC THEORY for hello!
this file is a collection of individual sheets
covering a bunch of lessons on music theory.
it’s not a book... yet. it might be someday!
MUSICIANS but as of right now, now, it’s incomplete.
The truth is, they weren’t intended to
be a single volume when I st when started arted making them... volume they were just review sheets for my own for sheets
theory students.
but the more I made, the more I realized
and
they could be collected
into a textbook of sorts... eventually!
NORMAL I still have a lot of work to to do,
but I’ve collected the ones I’ve made so far into a single document to to document make it easier for the folks
who wanted them all... but didn’t want to download every file individually!
so understand it’s a work in
progress... the progress is slow sometimes, because I teach music theory and aural skills during the day at the skills during university of dayt dayton on in dayt dayton, on, ohio,
so if you’ve been sent this file
and then head home to spend time with
by someone, know that there
my wife and six kids! and
might be a newer version version —
PEOPLE or more pages — — pages
at tobyrush.com.
but if you like this, or find it useful,
great! feel free to great! it,, and use it it. . share it, copy it
MyD “ MyD ad” So fiaRu fi aRu sh , Ag e5 Pe n an d cr ay ononp on onp rint ri nt er pap p er
just don’t sell it, change it it,, or tell others you made it!*
by Toby W. Rush R u s s h
*for more info, see http://creativecommons.org/licenses/by-nc-nd/4.0/
now let’s learn some
music theory!
by toby w. rush by music theory for for musicians musicians and normal normal people people
Notation: Pitch
music notatio notation n is the art of
recording music in written form.
F#d# Dµ DµD Sµ #SµS#d #M f##M Sµ SµSµg F #F #¶ #g# #g# F#d# liz phai r “what makesyou happy” [melodyfromchorus] melodyfromchorus] whitechocolatesp aceegg(1998) aceegg( 1998)
modern music notation is a product of centuries of transformation... and it is neither efficient nor intuitive!
the system of musical notation we use is essentially a stylized graph of pit pitch ch versus time.
pitch pit ch is the highness or
lowness of a sound. for example, a flute has a high pitch, pitch, while a tuba has a low pitch. pitch.
h c t i p
h c t i p time
the five lines on which notes on appear is called a st staff aff. .
a note is a written representation of a particular pit pitch. ch. keyboard; notation is based on the piano keyboard; lines and sp spaces aces on the staff represent the white notes on on the keyboard.
to display notes outside the staff, we use shortened staff lines called
F g a b c d e F g a b c d e the white notes on on the keyboard are labeled with letters from A to G.
treble clef
ledger lines.
alt al to clef
tenor clef bass clef
the clef determines determines what notes each staff modern line corresponds to. the four modern clefs are shown here; the note displayed on each staff corresponds to middle c.
To notate the black notes notes
The double sharp sharp raises the note by two half steps.
on the piano keyboard, we use accidentals, accident als,
which alter the note by one or two half steps. a half step is is the distance between two adjacent ad jacent keys
on the piano keyboard, regardless of what color the keys are.
is the c that is that is closest to middle c the middle of the piano keyboard.
The sharp raises the note by one half step.
these symbols are placed to the left of the note that they affect,, and they affect t hey apply to all the notes on that line or space for the rest of the measure.
The na natural tural cancels out any previous accidental.
The fla flat t lowers the note by one half step. F g a b c d e F g a b c d e The double flat flat lowers the note by two half steps.
two notes which have the same and and pitch pit ch (for example, f sharp ) are called enharmon g flat flat enharmonics. ics.
by toby w. rush by music theory for for musicians musicians and normal normal people people
Notation: Pitch
music notatio notation n is the art of
recording music in written form.
F#d# Dµ DµD Sµ #SµS#d #M f##M Sµ SµSµg F #F #¶ #g# #g# F#d# liz phai r “what makesyou happy” [melodyfromchorus] melodyfromchorus] whitechocolatesp aceegg(1998) aceegg( 1998)
modern music notation is a product of centuries of transformation... and it is neither efficient nor intuitive!
the system of musical notation we use is essentially a stylized graph of pit pitch ch versus time.
pitch pit ch is the highness or
lowness of a sound. for example, a flute has a high pitch, pitch, while a tuba has a low pitch. pitch.
h c t i p
h c t i p time
the five lines on which notes on appear is called a st staff aff. .
a note is a written representation of a particular pit pitch. ch. keyboard; notation is based on the piano keyboard; lines and sp spaces aces on the staff represent the white notes on on the keyboard.
to display notes outside the staff, we use shortened staff lines called
F g a b c d e F g a b c d e the white notes on on the keyboard are labeled with letters from A to G.
treble clef
ledger lines.
alt al to clef
tenor clef bass clef
the clef determines determines what notes each staff modern line corresponds to. the four modern clefs are shown here; the note displayed on each staff corresponds to middle c.
To notate the black notes notes
The double sharp sharp raises the note by two half steps.
on the piano keyboard, we use accidentals, accident als,
which alter the note by one or two half steps. a half step is is the distance between two adjacent ad jacent keys
on the piano keyboard, regardless of what color the keys are.
is the c that is that is closest to middle c the middle of the piano keyboard.
The sharp raises the note by one half step.
these symbols are placed to the left of the note that they affect,, and they affect t hey apply to all the notes on that line or space for the rest of the measure.
The na natural tural cancels out any previous accidental.
The fla flat t lowers the note by one half step. F g a b c d e F g a b c d e The double flat flat lowers the note by two half steps.
two notes which have the same and and pitch pit ch (for example, f sharp ) are called enharmon g flat flat enharmonics. ics.
by toby w. rush by music theory for musicians musicians and normal normal people people
Notation: Rhythm
while pit pitch ch is pretty clearly notated on a
length is indicated using a vertical axis, note length somewhat arcane system involving
noteheads, stems and flags. flags. e t o n e l o h w e l b u o d
e t o n e l o h w
e t o n r e t r a u q
e t o n f l a h
e t o n d n o c e s y t r i h t
e t o n h t n e e t x i s
e t o n h t h g i e
e t o n h t r u o f y t x i s
e t - o d n e h r t d h n g u i h e - y e t n n o e w t
in this chart, each successive type of note is half as long long
note lengths in a piece
as the note to its left. left. none of these notes has a st standard andard
are indicated by the tempo
a half note in one piece may a may be the same length as length;
at the beginning at marking
an eighth note in a different piece.
t s e r e l o h w e l b u o d
t s e r e l o h w
t s e r r e t r a u q
t s e r f l a h
of a piece or section.
t s e r d n o c e s y t r i h t
t s e r h t n e e t x i s
t s e r h t h g i e
t s e r h t r u o f y t x i s
t s - e d r e h r t d h n g i u e h - y e t n n o e w t
a rest is a period of
usually rests are
silence that a length
placed on the staff at a
which corresponds to a
particular vertical
particular note.
position as shown here.
the augment is a dot placed to the is augmentatio ation n dot right of a notehead not ehead. . though small, sma ll, this dot
multiple dots can ca n also be added adde d,
wields some serious power: power: it adds half
each one adding half of the
of the original note’s length!
previously added value. ack! Get it off!
=
+
=
+
+
=
+
+
+
GEt it off!
ties are curved marks which connect
to tie more than two notes together,
two notes together to create
draw ties between each note; do not do
a single, extended extended sound.
=
use a single, extended tie.
=
a tuplet is any non-standard division of a
most tuplets are simple divisions, like
note. these are usually written as a group
the triplets to the left. but anything is
of notes delineated with a bracket and
possible! chopin, for example, would
a number showing the division being made.
3
for example, these aren’t
to town town with these things. often go to
) 6 4 8 1 ( 1 . o n , 2 6 p . o , r o j a n m i p b o h n i c e c n i r r e u t d c e r o f n
exactly quarter notes;
wha... gah!
they are each a third as
chopin, no! down, boy!
long as a half note.
by toby w. rush by music theory for musicians musicians and normal people
Notation: Meter
a fundament fun damental al feat fe ature ure of most pieces of music is a
consistent consiste nt rhythmic rhythmic pulse. beat t, this pulse is called the bea and a single pulse
) ] 6 o 9 r 9 t 1 n i ( n m e u t r t o d [ g ” r s o w f o t n o k n s , n r n r e e v v i o a c g e r e h h o “ f t
is called a bea beat t unit. there are two types of beat units:
...and those cont containing aining
those containing two divisions,
three divisions, called compoun compound d beat units.
called simple beat units... beat
in music, beats are organized into patterns of accente accented d and unaccente unaccented d beat units. in fact, if you listen to a sequence of repeated notes, your brain will probably start to perceive the notes as groups of two, three, or four, even if no accents are present!
these groups are called measures measures,,
measure
barline
and they are delineated with barlines. the organiza organization tion
simple TIME SIGNATURES SIGNATURES are easy.
of beat units and measures in
the top number
a piece is called
indicates the number
meter. Meter is
in a measure. in of beats
described by two numbers placed
the bottom number
at the beginning
indicates the type of
note which serves as which the beat unit unit. .
of the piece: the time signature.
the code for the bottom note is pretty easy: a quarter note, note,
refers to to an eighth
to a sixteenth note, and so on.
compound TIME SIGNATURES SIGNATURES are kind of l lying ying to to you. the top number indicates the number
of divisions in a measure. to get the number of beats, divide it by three. the bottom number indicates the type of note which serves as the division. which to get the beat unit unit,, use the note that is equal to three of these notes.
in fact, wouldn’t this be an easier way to notate
compound meters?
in a compound meter, the beat unit is always a dotted note !
sorry... the man says you have to do it the other way.
by looking at the top
number of the time signature, of you can tell two things about the meter: whether it’s simple or compound compound,, and how many beats are in a measure. simple
e r u s 2 a e m r 3 e p s t a 4 e b
notes that have flags can be grouped together by using
beams in place of flags.
compound
however, beaming is only used to group notes within beats. for the most part, part, you shouldn’t beam notes between beats, nor should you tie notes within beats.
by toby w. rush by music theory for for musicians musicians and normal normal people people
Hey, i t t ’ s ’s Hey, the the Sparky music ids! kids! k
theory dog!
Dear Sparky: I understand that we’re supposed to beam rhythms to show the organization of beats in the measure, but is there an easy way to beam complex complex rhythms? --A.Y., Owatonna, MN
Q:
A: WOOF!* *translation: notes should be beamed in groups that illustrate
the
meter. for simple rhythms, this is pretty easy to do; simply group any notes that can be beamed (eighth notes and smaller) simply sm aller) into groups that are equal to to the beat beat unit of the current meter. meter.
for complex rhythms, complicated ted... ... when a rhythm includes things rhythms, however, things can get complica like syncop syncopatio ations ns or other off-beat figures, illustrating the meter may involve dividing notes across beat units with ties. for across fortuna tunatel tely y, there the re is i s a step-by-step system for correctly beaming these complicated rhythms! for example, let’s take ta ke this rhythm, which is written without beaming. find the smallest note value used, used, and fill a complete measure with this type of
step 1: note, beamed in groups that are equal to a beat beat unit in the current meter.
add ties between individual notes to recreate the original rhythm. make sure that
step 2: each tied group corresponds to to a note in the rhythm you started started with! yes, i know it looks weird weird... ... but we’re not done yet! original rhythm:
find every group of two or more notes that are both tied together and and together, and replace them with a single note together, of equiv of equivalent alent value. value.
step 3: beamed if you have notes that are tied or beamed, but not both, then leave them alone!
= don’t touch!
hands off!
yes... simplify it!
a correctl correctly y beamed rhythm rhythm may include ties, but it will very clearl c learly y show the bea show beats ts in the measure... which, in in turn, makes it easier for the performer performer to to read!
DOING STUFF THE SPARKY SPARKY WAY IS ALWAYS FUN!
by toby w. rush music theory for musicians and normal people
The Major Scale
one of the reasons that a particular piece of music sounds the way it does has to do with the the composer decided to use. group of notes
2 2 1 7 , h a c b a n l e a h d a c a g
r b a m o n i a n j t n a s a a m o r b s e f n G i n k a n o o e t b o h t e n u j i o M n
take this melody, for example... let’s first remove all the duplicate notes, regardless of which octave they’re in.
next, let’s put the notes in alphabetical order, starting on the note that the melody sounded like it was centering on. what we end up with is the “palette” for this particular piece...
there are actually many different types of scales, each with a different pattern of whole steps and half steps.
a half step is the distance between
like the board on which a painter holds the bits of paint being used in the painting being created.
two adjacent keys
on the piano keyboard, regardless of color.
in music, this “palette” is called a scale. though we usually write scales from low to high, the order is actually it’s the notes contained in the unimportant; scale that help make a piece sound the way it does. particular this arrangement, where half steps occur between steps three and four and between steps seven and eight (or between seven and one , since eight and one are the same note), is called the major scale.
whole step
whole step
half step
whole step
whole step
whole step
half step
a whole step is the equivalent of two half steps.
(this scale, by the way, is called the g major scale, because it starts on g.)
knowing this formula, you can create a major scale on any note! the f major scale
the d flat major scale
but remember... with the b major scale
the g flat major scale
great power comes great responsibility!
by toby w. rush music theory for musicians and normal people
Key Signatures
A
B E A D
A
f c g
b
B E
b
f c g d a
c
B E A D G C F
if you start writing major and pay attention to scales the accidentals that occur, you are going to start noticing a pattern...
for example look at the flat keys, starting with the key that has one flat, all the way through the key with
seven flats: the flats accrue in a specific order. same with the sharp keys!
c so if you look for a key that has only a d flat, you won’t find it: if a key has a d flat, it must also have a b flat,
c
f c g d a e b
d
B E A D G
d
f c
e
B E A
e
f c g d
f
B
f
f c g d a e
g
B E A D G C
g
f
and an a flat! an e flat
since writing an entire piece in would have c sharp major been a sure-fire way to get with carpal tunnel syndrome all the sharps involved, composers pretty quickly came up with a way to simplify things:
key signatures. a key signature is a group of
accidentals placed at the beginning of every line of music, just to the right of the clef, that instructs the performer to apply those accidentals to in every corresponding note the piece unless specified otherwise. for example, this key signature indicates that every f, c, and g in the piece should be sharped, regardless of octave!
oh, and another thing: the accidentals have to be placed in the correct order, and they need to follow a
particular pattern of placement that varies slightly depending on the clef being used! if you deviate from this, you, as a composer, will be mocked! what’s tenor clef sharps! your problem? you need to conform!
ha ha... never!
by toby w. rush music theory for musicians and normal people
The Circle of Fifths
theorists find it convenient to organize all the possible key signatures into a chart that shows their relationship to one another.
this chart, called the circle of fifths, displays each key as a spoke on the circle, beginning with c major at the top and adding accidentals, one at a time, to the
we’ll return to this chart
key signatures around the perimeter.
as we continue learning about how composers use keys.
C 0
F
G 1
1
as you move clockwise around the
B
circle, you add sharps to the key signature. as you move counterclockwise around, you add flats to the key signature.
2
to determine the key for a key, look to signature see which “spoke” of the circle
when adding flats to in this order:
flats or sharps it has, and add accidentals to the key
3
D
a key signature, add them
it’s on to determine how many
E
2
signature appropriately.
3
beadgcf
for example,
A
when adding sharps,
e flat major has three flats,
use the reverse of the order above.
so it should look like this:
A
4
4
E
the keys down here line up
enharmonically... for example, the key of d flat major will sound just like the key of c sharp major.
7 5
notice how that
beadgcf pattern pops up all over the circle of fifths?
weird!
C D
so could you
5 6 6
F G
7
B C
continue the enharmonic deal and have the key of
f flat major? yes, if you want a double flat in your
key signature:
nooooo!
by toby w. rush music theory for musicians and normal people
Diatonic Intervals
an interval is the distance in pitch between two notes.
the most basic way which we identify different intervals is by counting the steps between the two notes.
smaller intervals
larger intervals
specifically, we count scale degrees, but the easiest way to do it is to count lines and spaces on the staff. 7
when counting the lines and spaces, we can safely ignore any
when counting, begin with the as bottom note one and count until you reach the top note.
6 5 4 3 2 1
accidentals.
this interval is also a seventh...
we’ll discuss how it’s
this interval is a seventh!
n o i s n u
two notes on the same line or space is called a unison.
d n o c e s
d i r t h
that’s latin for “one sound”!
when we are talking about intervals we sometimes discuss harmonic intervals and
different very soon!
t h r u o f
t h f i f
t h x i s
and that’s latin for “eight”!
t h n e v e s
v e a t c o
the distance from a note to the next closest note with the same letter name is called an octave.
and when you swap the two notes (move the lower note up by an octave so it becomes the higher note), that is called inverting the interval.
melodic intervals.
THE RULE
harmonic interval
melodic interval
a harmonic interval is simply two notes played simultaneously ; a melodic interval is one note played after the other.
it’s helpful to remember that seconds always invert to sevenths, thirds to sixths, and so forth... the fact that each of these pairs add up to nine is known to theorists as “the rule of nines.”
2nd
7th
3rd
6th
4th
5th
5th
4th
6th
3rd
7th
2nd
OF NINES
by toby w. rush music theory for musicians and normal people
Perfect Intervals
the distance of an interval is one part of its name, but there’s more: every interval has another quality to it, which we’ll call inflection. inflection is a bit harder to understand, partly because some theorists use it depends on the type of interval. so let’s start by the term quality for looking at unisons, fourths, fifths and octaves. this... that’s cool too.
unisons and octaves are the easiest to label: if the two notes are the same (for example, b flat and b flat ), then the inflection is perfect: such an interval is called a perfect unison or a perfect octave.
fourths and fifths require a little more explaining. if you look at all the fourths and fifths you can create using only the white notes on the piano keyboard (in other words, using only notes ): without accidentals
each one is perfect except for those which use f and b!
wait... why are the to f intervals b different?
well, if you were to count the half-steps that make up each interval, you’d notice that all the other ones are to b is equal in size, but the b to f intervals are not: f a half-step larger than a perfect fourth, and b to f is a half-step smaller than a perfect fifth.
which raises the question: if the interval is not perfect, than what is it? an interval that is a half-step larger than perfect is called an augmented interval.
A5
A4
A P d
a u g m e n t e d
d5
d4
d8
and there’s no such thing as a diminished unison...
p e r f e c t
A8
A1
you can go further, to doubly augmented and intervals, doubly diminished but... do you really want to?
d i m i n i s h e d
just like two things can’t be negative two feet away from each other!
an interval that is a half-step smaller than perfect is called a diminished interval.
by toby w. rush music theory for musicians and normal people
Imperfect Intervals
We’ve talked about unisons, fourths, fifths and octaves , but what about the rest? are these other intervals somehow imperfect?
well, yes, but not because they are somehow inferior to perfect intervals... seconds, thirds, sixths and sevenths just work a little differently!
A M m
a u g m e n t e d
m a j o r
for one thing, the inflection for these intervals is never perfect; it will be either major or minor. minor intervals are a half-step smaller than major intervals. like perfect intervals, though, they can also be augmented or diminished; augmented intervals are a half-step larger than major, and diminished intervals are a half-step smaller than minor. how do we know if an interval is major or minor? we can actually use the major scale to find out. notice that, in the major scale, intervals from the tonic up to another scale degree are major.
major major second third
m i n o r
major major sixth seventh
likewise, intervals from the tonic down to another scale degree are minor.
d
d i m i n i s h e d
minor minor second third
minor minor sixth seventh
knowing this, when you are confronted with a second, third, sixth or seventh, you can find its inflection by thinking about the key signature of the top and/or bottom note. we know this is a major sixth because d, the top note, is in the key of f major (the bottom note).
and this is a minor seventh because b, bottom note, is in the key of a major (the top note).
if the top note is in the major key of the bottom note, the interval is major. if the bottom note is in the major key of the top note, the interval is minor. when the notes of the interval have accidentals, the associated key signatures can be more complicated... so it’s easiest to temporarily ignore the accidentals, determine the interval, and then add the accidentals back one at a time and track how the interval changes! ack! what is that? let’s
first hide the accidentals...
! f o o p p o o f !
M6
e is in the key of g, so
we know this is a major sixth.
m6
adding back the flat makes the interval smaller, so it’s now a minor sixth...
adding back the sharp makes it even smaller...
a diminished
d6
sixth!
by toby w. rush music theory for musicians and normal people
Hey, i t ’s the Sparky music kids! Q:
theory dog!
Dear Sparky: Since we are supposed to use different approaches for identifying perfect and imperfect intervals, can you summarize them all into one system? --I.M., Staten Island, NY
A: WOOF!* *translation: the following chart shows an approach for
identifying
any interval. a similar approach can be used when you need to write a particular interval above or below a given note: first, add a note above or below the given note at the correct distance, then follow steps 2 through 4 of this chart to identify it. Then, if necessary, alter the note you added with an accidental to create the interval called for.
STEP 1: STEP 2:
determine the distance of the interval by counting lines and spaces.
7 6 5 4 3 2 1
count the bottom note as one , and continue until you reach the top note. ! f o o p
cover up all accidentals.
p o o f !
STEP 3:
determine the inflection of the interval in front of you (the one without accidentals!) as follows: if it is a if it is a if it is a second, third, unison or octave: fourth or fifth: sixth or seventh:
the interval shown is a perfect unison or perfect octave.
it just is.
STEP 4: d
P
perfect
if the bottom note is in the major key of the top note, the interval is minor.
otherwise, the interval is perfect.
really.
t e c r f l s p e r v a e diminished i n t
if the top note is in the major key of the bottom note, the interval is major.
if the interval uses the notes f and b, it is either an augmented fourth or a diminished fifth.
A
add the original accidentals back, one at a time, and track how the interval changes inflection.
augmented
c t f e e r v a l s p i m e r diminished i n t
d
m M minor
remember: accidentals can never affect the distance of an interval... all they can ever do is change the inflection!
major
A
augmented
M6
m6
d6
This method may seem complicated at first, but it becomes easier and faster with practice... and it gives you the correct answer every time!
DOING STUFF THE SPARKY WAY IS ALWAYS FUN!
by toby w. rush music theory for musicians and normal people
The Minor Scales
There are actually two things that define a key: the key signature is the most obvious one, but another important part of a key is the tonic... the note around which the key centers.
this key is defined by a key signature of no sharps and flats, but also by the fact that it centers around c.
but what if we change the tonic? what if we use the same notes for the key signature, but change the note that the key is centered around? if we center the key around the sixth scale degree of the major scale, we get a new scale: the minor scale.
a l r t u o r a n i n e m a l e t h
s c
the thing is, common practice period composers
the whole step here didn’t have
weren’t all that crazy about this scale, because it lacks something the major scale has: a half-step from seven to one.
the tension they liked going into the tonic!
so here’s what they did: they raised the leading-tone by a half-step with an accidental. This gave them the tension they were looking for!
i c n m o r r h a m i n o e a l c s e t h
h a l f ! p e t s
this scale is great for building chords, so we refer to it as the harmonic minor scale. however, composers didn’t use it for writing melodies, because it had a problem: an augmented second between the sixth and seventh scale degrees. so, for melodies, they made another change:
now we only
they added another accidental to raise
have whole steps
the sixth scale degree by a half-step.
and half-steps!
i c d l o r e m i n o e m l e t h
a s c
now, remember... the reason we raised the leading tone in the first place was to create tension from the seventh scale degree to tonic. but in a melody, if the seventh scale degree is followed by the sixth scale degree, we don’t need that tension, so we don’t need to raise the leading-tone at all. the way we illustrate this is by differentiating between ascending melodic minor and for descending melodic minor, we don’t raise anything! descending melodic minor;
by toby w. rush music theory for musicians and normal people
Triads
although a chord is technically any combination of notes played simultaneously, in music theory we usually define chords as the combination of three or more notes.
secundal harmony
tertial harmony
quartal harmony
quintal harmony
chords built from seconds form
chords built from (MORE thirds SPECifically, from major thirds and minor thirds ) form the basis of most harmony in the common
chords built from
chords built from
perfect fourths
perfect fifths
create a different sound, used in compositions from the early 1900 s and onward.
can be respelled as
tone clusters,
which are not harmonic so much as timbral.
quartal chords,
and as such they do not create a separate system of harmony.
e s
practice period.
is the chord still tertial if it is built from diminished thirds or augmented thirds?
well, diminished thirds sound just like major seconds, and augmented thirds sound just like perfect fourths, so...
let’s get started on tertial harmony with the smallest chord possible:
when we stack the chord in thirds within one octave, we get what is called the simple form of the chord.
the triad.
a triad is defined as a three-note c hord, but in practice it is almost always used to refer to tertial three-note chords.
? y . y n e l o e d s v n i m e a r h t a t l c e , a h p y i l n t s e a r t o r m e p , t y r e a s n s h a o ? l m y a e r t m n a n o i a h s u m l r q a a e h h d h t t i n l w e a r u t s a c x a e
s
no.
the lowest note in the chord when the chord is in simple form is called the root. the fifth names of the third other notes are based on root their interval above the root.
incidentally, four-note chords are technically called tetrads, but we usually call them seventh chords, since they add a seventh.
there are four ways to create a triad using major and minor thirds:
e d h n i s a d i i d i m t r e t h
e t h t
two minor thirds stacked together
a major third on top a minor third on bottom
min 3rd min 3rd
c°
a minor third on top a major third on bottom
maj 3rd min 3rd
c
e e d t h n t e d m g r i a u a t
e t h o r j d a m r i a t
r o n m i r i a d
two major thirds stacked together
min 3rd maj 3rd
C
maj 3rd maj 3rd
+
C
we label triads using their root (”a c minor triad ”). the abbreviations shown above, which use upper case, lower case, and symbols to show chord type, are called macro analysis.
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