I was late to the library game, and only own a short stack of these gems, but for folks unaware, some amazing studio musicians (especially in Europe) recorded some of the funkiest and weirdest music on "library" records, that were available to radio and tv producers to use on their shows or elsewhere. Recently I discovered that one of the iconic sound effects associated with the early days of Portland Trailblazers broadcasts that I used to hear all the time as a kid actually came from a 1970s KPM record. No tracklist on this one! Dig in.