I play guitar, and I always seem to play it really, really well in dreams. Weirdly, or perhaps not so weird, I always play it better when I'm in a normal dream as opposed to a lucid dream. I think it's because in a lucid dream I'm focusing on how to actually play, like what my fingers are doing and what notes I'm fretting like I do in real life, and kindve expect it to sound a certain way. Whereas in a normal dream, I just play and what my hands are doing is usually completely unrelated to the music.