It's a 6 tone scale. Add a 9th (2nd) to a pentatonic. Here's something to try - on an A Blues (I7, IV7,V7) Use the Am Pentatonic and at the chord change try and nail the 9th. It'll send you off in a new direction and add a nice sound.
mrMix
Sitting plush with royal flush. Aces back to back...