The half whole diminished scale is one of the most commonly used scales in jazz soloing. Its main function is to add alterations to dominant 7 chords. This creates a great deal of tension which usually resolves when the dominant moves to the tonic chord. I have included a PDF which explains the alterations added to a dominant 7 chord, 2 lines which use the diminished … [Read more...] about Jazz Bass Soloing Pt. 3: Soloing Over The Half/Whole Diminished Scale