harmony: Half diminished
Any scale that contains all the chord tones of a chord can be used for improvisation over that chord.
The following scales contain all the Half diminished chord tones (1,3b,5b,7b)Aeolian b5 scale - Intervals: 1,2,3b,4,5b,6b,7b Locrian scale - Intervals: 1,2b,3b,4,5b,6b,7b Locrian #6 scale - Intervals: 1,2b,3b,4,5b,6,7b Octatonic - dominant mode scale - Intervals: 1,2b,3b,3,5b,5,6,7b
The following scales contain all the Half diminished chord tones (1,3b,5b,7b)