what got me on to this was some discussion about bebop jazz scales which are 8 note scales. Consider this: Pentatonic sc. 5 notes, Blues sc. 6 notes, Maj/min sc. 7 notes, diminished & bebop jazz scales, 8 notes.

The 8 note bebop scales, when played in 1/8th notes, fall metrically on the chord tones, either played 'straight' or swung, same with the 8 note diminished scales.

This got me thinking about how the number of notes in a scale type can affect rhythm, timing, phrasing, cadence, syncopation... that kind of thing.

I'm suggesting that, for improv, switching scale types can not only change the melody, but almost forces the player to change or vary the rhythm, phrasing etc. this would be at a constant beats per minute tempo.

This can be applied to a basic 12 bar blues. besides the standard pents and blues scale..... modal maj/min scales, diminished & bebop scales can be worked in. Would need to go thru the 12 bar cycle a few times.

Here's an example of the ascending Dominant 7 bebop scale with the descending Major bebop scale... up 2 octaves G, A, B, C, D, E, F, F#, back down 2 octaves G, F#, E, Eb, D, C, B, A, G. listen for how the 1/8th notes fall on the chord tones for a G7 chord.

any feedback / opinions on this?