i need your help. i want to do the solo over a riff, but i just cant the right scale im searching for. somehow it sounds always wrong. the notes of the riff are on the pic below. i want to do a kind of metal/rock/blues solo, but somehow it doesnt work out. so i dont really know anything about theory, so could you tell me what key the riff is and what scales in which keys are fitting over it? it doesnt matter if pentatonic, harmonic minor or something else, anything that could sound good over that part :).
