This girl (not a pianist) claims to write all of her music while lucid dreaming, with full retention, brings it right to the studio and tracks it after.
Anyway, I checked the site, the "dream music" section, gallery (made me crack up) and music samples. The last section (supposely the highest priority, eh?) was especially funny after all the mysterious and enticing (some people would just call them flat) descriptions of her oh-so-potent dreams.
Perhaps meaningless drivel can sound full of profundity in our dreams?