The diatonic scale is a formula.
tone tone semitone
tone
tone tone semitone
(T T S T T T S)
We write it with the letters of the alphabet and sharps and flats. The diatonic scale of D is D E F# G A B C# D.
| D | D# Eb | E Fb | F E# | F# Gb | G | G# Ab | A | A# Bb | B Cb | C B# | C# Db | D |
| D | E | F# | G | A | B | C# | D | |||||
| T | T | S | T | T | T | S |