Dominant 7th blues scale notes

by Harvey
(Philippines)

Question: Does including d7th notes in blues scales mean that the new scale will now have 10 notes? Consider the key of E. Included in the scale is is Bb, Db and Gb.

Answer:

Now then Harvey, the dominant 7th is a natural part of all blues scales, but you are correct - the full "chromatic" blues scale (below) contains 10 notes.



Quite a scale!