Here is Richard Stallman's analysis of what he calls (rightly, I think) a trivial patent for "A method for enabling a remote user to preview a portion of a pre-recorded music product from a network web site containing pre-selected portions of different pre-recorded music products, using a computer, a computer display and a telecommunications link between the remote user's computer and the network web site". (e.g. listening to a MIDI at Alan's site ?)

T.