A series of Notes that sound good together. Notation From a starting note: W+H : Move 3 Semitone up W : Move 2 Semitone up H : Move 1 Semitone up For example, starting at C with pattern W+H-W-H would result in: C->D#->E#(F)->F# Scales Minor Scale Major Scale Blue Scale Pentatonic Major Scale Locrian Mode Harmonic Minor Scale