basic query

i hv this query..may be amateur..bt can we play different type of scale on diff progression like...in e harmonic minor..we have chords am,b,c,etc..so while playing the solo over b chord suppose...can i play b oriental scale?? O.o or do i have to play harmonic minor scale only ?

You can play anything as long as notes sound "all right" on top of the chord.
Of course, the definition of "all right" changes with ppl.

hey thanx man !!

and even carlos santana uses IGT ;-)