after a few days of searching, i can answer my own question:

the Cocteau Twins - Pink Orange Red

originally from the TINY DYNAMINE EP (1985)

Also available on Stars and Topsoil.

Hey, just discovered this site in the last few months, finally listened to the last Alternative Bedtime Hour with Dani's sign off in the Full Air Checks section. Does anyone know what the last song she plays is? It's very haunting and ethereal. She doesn't mention the artist or title, and I think it...