Half Whole Diminished Scales PDF The half-whole diminished scale is an 8 note symmetrical scale. It's played over altered dominant chords and has tensions b9, #9 & #11. Half Whole Diminished Scale Groups File Type: pdf Join PianoGroove Pro to access all downloads and learning resources. Download theory supplements, midi files, chord changes and full note-for-note transcriptions of every lesson. Learn more about pro membership >> Download