7b5#9 chord

The 7b5#9 chord is one of the four 7alt chords in music, typically built from the altered scale. Altered seventh chords, in the strictest sense, are dominant 7th chords that have both an altered 5th and an altered 9th. I cover the notes and intervals for the 7♭5#9 chord, how to use the chord and show 3 closed voicings and 8 open for the 7♭5#9 chord.