Scales are the blueprint for writing music. They are comprised of formulas that define the notes to play within a specific key exactly like chords. Chords are a type of formula in which all the notes are played simultaneously and in general, have fewer than five tones. The key note, similar to the bass note in chords, tells which note to begin the scale’s formula from.
Scale formulas, like chord formulas, can be defined in a few different ways. They can be described using the Whole-Step/Half-Step (W/H) Method (Suspended Pentatonic = W, W+H, W, W+H, W). They can also be described Digitally using 1’s and 0’s as well (Suspended Pentatonic = 1 0 1 0 0 1 0 1 0 0 1 0 1).