Just like Anna Russell before him, Peter Schickele is well-known for his parodies of classical music traditions. Though Schickele took the whole thing a step further by creating a whole musical personality, P.D.Q. Bach, "youngest and the oddest of the twenty odd children" of J.S. Bach. He has used this guise to write quite a lot of music, including a couple of "operas" in various quantities of acts.
Surprisingly, considering the fact that P.D.Q.'s "music" basically lampoons classical music, Schickele seems to be quite a talented composer, some of the musical ideas he uses can be quite contagiously brilliant (the third "piece" here features a quite wonderful bass line, so wonderful, in fact, that I really do think that a couple of excellent singers could make the piece into a serious one (incidentally, do listen to the words, most of the humor lies there)). Presented here is a parody of musical pieces utilizing the basso ostinato or the ground bass. I am also providing a link to the album from which this piece is taken, just in case you want more information:
Enjoy and do try to take the pieces as far away from seriousness as you can :)!
P.S. By the way, for people who have guessed the identities of the people on the painting I have used for the backdrop, I'm not trying to lampoon either of the people on it, I just found that the painting went well with the music :)!