Originally Posted by: dlwalke

I know you can play minor pentatonic over either major or minor blues, but I'm kind of guessing that if you're playing a minor blues progression (e.g., Am, Dm, Em) that the A major pentatonic would be an odd, atypical, and musically dubious choice.

[p]I'm not aware of any players or tunes that do that. There are jazz players that use major notes or even whole major modes quickly over minor chords sometimes.

Often jazz players use modes of melodic minor which has a minor 3rd but also a major 6th & major 7th. But this is an intentional way of working from, to or through the surrounding chords in the progression. And it is meant to sound intentionally "outside". A great example is a minor-major 7th chord.

The more frequently used choice in blues is minor notes over major chords. That bittersweet clashing dissonance is one of the key characterists of much blues. Often you will hear major chords, notes, lines as the foundation or basis & minor notes in the upper registers as ornamental melody notes.

Or you will hear the use of minor 3rd followed quickly by the major 3rd as a dramatic way of chromatically delaying the arrival of the major 3rd. This is as a old as classical music.

Hope that helps!