I have now been playing guitar for about 4years and I consider myself and am considered by others to be a fairly good player...but, whenever I do improv solos, although I work in modes and theoretically "useable" notes, I always seem to just take runs out of scales, like for instance I will just play three notes in order, straight outta a mixolidian scale, which sounds good, but if I repeat this thing in a different modal scale, It just starts to lack melody...pls help me out, I am trying to work it in arpeggios using those same scales/modes and it sounds ok, but it still is all speed and no real melody...HELP!