The whole-tone scale divides the octave into 6 equally-spaced whole steps: C-D-E-F#-G#-A#. Every interval between adjacent notes is the same. This perfect symmetry gives the scale its signature dreamy, floating quality.
Only Two Transpositions
Because of its symmetry, there are only two distinct whole-tone scales. C whole-tone (C-D-E-F#-G#-A#) and Db whole-tone (Db-Eb-F-G-A-B). Every other starting note produces one of these two collections.
C Whole Tone
Sound and Usage
Ambiguous and unresolved. No perfect 4ths or 5ths exist in this scale, so there’s no tonal gravity. Use over augmented triads and dominant 7#5 chords. Debussy used it for impressionistic color; jazz musicians use it over altered dominants.
On the P4 Fretboard
The whole-tone scale creates a perfectly regular diagonal pattern in P4 tuning. Two notes per string, evenly spaced. The visual symmetry matches the sonic symmetry - you can literally see why there are only two transpositions.