Lately I feel like I've become stuck doing the same little pentatonic stoner rock riffage whenever i get in a jam with my friends/bands. Its not that I have any problem with it, but I just get stuck doing constantly repeating riffs that all vaguely resemble one another. I've been thinking of just learning a lot more tunes by ear and trying to get more of a feel for hearing patterns in the music rather than just learning scales, because i tend to play them a little too much like the literal scale sometimes. Has anyone else had problems like this and what did you do spice up your jams again?