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5b.  What is this Formula   -  T    2    2    1    2    2    2    1  ?

The formula is relating to Tones and Semitones

Each note side by side is a semitone interval

If you skip one note and go to the next note, this is a Tone

See the diagram below

E

F

G

A

E

F

G

A

F#

Gb

G#

Ab

A#

Bb

B

C

D

C#

Db

D#

Eb

F#

Gb

G#

Ab

A#

Bb

B

C

D

C#

Db

1
Start
T
2
1
2
2
2
1
Tone
2
2
Tone
3
Semi
Tone
4
Tone
5
Tone
6
Tone
7
Semi
Tone
1

The notes of the A Major Scale are

A  B  C#  D  E  F#  G#  A

On the guitar each note (fret) side by side of each other is a Semitone interval.

If you miss one note (fret) and go to the next note (fret) this is then a Tone.

NOTE:- All the blue numbers shown on the guitar neck are the notes of the A Major Scale all over the neck of the guitar.  You see there are many positions to play any scale on the guitar.  Study the diagram above.

Page 6 Page 5a

Tones and Semitones on the guitar

1
Start
T
2
1
2
Tone
2
2
Tone
3
Semi
Tone
4
Tone
5
etc..
etc..

The A Major Scale

Shown on both the

Guitar and Keyboard