Space plays and stops
- Notes and intervals
- G#m3Bm3Dm3F
G# Diminished 7, written G#dim7, is built from G#, B, D and F: the root, minor 3rd, flat 5th and diminished 7th.
Its 3rd and 7th, B and F, are its guide tones: they say what kind of chord it is, so voicings are built around them and the root is often left to the bass.
In the progressions here, G#dim7 is the ♯i°7 of the Diminished Passing Turnaround in G and the ♯iv°7 of the Jazz Blues in D.