These files are rips from LP and 45s that I have encountered over the years. The first two files are side 1 and side 2 of Paul Tripp's LP Billy On A Bike / Mr. I Magination, which I listened to as a kid and then again when my kids were kids. The third file is side 1 and 2 of a 45 I came across, Trip to Mars. Files three and four are tracks from a couple of LPs by Paul Tripp and are written by him and fairly famous.