About GmMaj7b5 — shell voicings
GmMaj7b5 names three separate instructions: a minor 3rd, , and major 7th. The result is G, Bb, Db and F#.
The flat 5th is the only change from . It must sound, or the voicing is only . This is neither a half-diminished nor diminished-seventh chord.
Also written GmM7b5 or Gm(maj7)b5.
What is a shell voicing
Shell voicing
R35♭7
Root, 3rd and 7th. The 3rd and 7th set the quality; the 5th adds nothing, so it goes. That frees a string for a tension.
What to play over GmMaj7b5
Useful scales
- +ACEbE
Contains GmMaj7b5 and adds ninth, eleventh, sharp fifth and thirteenth.
Chords near GmMaj7b5
Remove a note
Change one note
The common shapes and the derived voicings come from different places, and both are explained in how this site is built.