a subtle or elaborate argument or point of debate, usually on a theological or scholastic subject.
2.
Music.a humorous composition consisting of two or more independent and harmonically complementary melodies, usually quotations of well-known tunes, played or sung together, usually to different texts, in a polyphonic arrangement.
Origin: 1350–1400;Middle English < Medieval Latinquodlibetum; compare Latinquod libet what pleases, as you please