Hai guyz,

I have to do this thing for school, and me and few mates have to do a little music piece. Id probably rate myself as an intermediate player, been playing for about 3 years now, but i sort of skimmed over scales and didn't retain any of my knowledge about them.

So what i need from you guys, hopefully, is some hard-ish blues scales that i can improvise with. I searched google, but didn't find anything that really i could work with.

Cheers in advance guys
I don't know if this is something you're looking for, but

e 3-6-----------------------

I don't know the formula for it, but i know that's a blues scale.
Also Mixolydian and the major pentatonic scale over 7 chords, and Dorian over m7 chords.