Help to ID these old tracks

[electropianist]

Hi folks,

Please help me out with these:

https://www.youtube.com/watch?v=0hd41LER_LQ

https://www.youtube.com/watch?v=0zoQh00_Dhs

https://www.youtube.com/watch?v=_jb5qy1Ti30&t=57s

https://www.youtube.com/watch?v=8NCv5ZfRxik