Have to agree, i bought the entire collection of Marx movies about a year ago, plus some doco's about them.
Besides comedy, Chico & Harpo have insane musical talents, and in fact been acclaimed as the best in the business by CURRENT symphony musicians/directors....that' a big call !!
I can't think of which movie it is, but there's a seen where Chico plays a piano which falls apart (i think someone fights/falls on it)....then Harpo runs in, and pulls the inside framework of the piano out, which just happens to be like a harp and plays it (a piano is really nothing more than a harp with hammers+keys anyway).....amazing stuff.
MM.