'Pizz' is short for 'pizzicato', an Italian musical term meaning to pluck a string of a string instrument (such as violin/viola/cello), as opposed to using a bow. It is a technique that most...
Retrograding is playing the music exactly the way it is, but backwards. Inverting means the same but to play upside down, that one is a little harder to explain. I just recently learned it and it...