Found on a tape, three approx. five-second excerpts of piano pieces. I don't think they're desperately obscure, but I can't recognise them, though I suspect the second one may be the opening of Falla's Ritual Fire Dance. Apologies that the first and third are rather quiet. Any help you can give will be gratefully received...
https://vocaroo.com/1mO9cNyA9yUd
https://vocaroo.com/1mO9cNyA9yUd