A humorous or satirical composition which exaggerates the features of some other composition such as Bach Portrait by P. D. Q. Bach (Peter Schickele).A composition where a new text has been substituted for the original as in Fat (after Bad by Michael Jackson) by 'Weird Al' Yankovic.A Renaissance style of composition, especially prominent in the composition of Masses, in which older material was used in the creation of new music. For a composition to be a parody, it was necessary to incorporate the entire substance of the original material into the new, not merely a tune or a few lines of text.