I knew about Soft Machine, but I wasn't aware of Robert Wyatt and his contribution to the early days of this seminal 70s prog group. Nor was I aware of his intensely personal and profound solo album Rock Bottom. You can read about Wyatt and the backstory for the album at the wiki. It's a complex story that's at once sad and inspiring. You can read reviews at allmusic, at Pitchfork, and at uncut. These last two sources are both reviews of Wyatt's reissues.
The exquisite Sea Song is the first track of the album. If this is at all your cup of tea, do yourself a favor and purchase the album. It's a masterpiece of quiet brilliance.
[ click it and listen | song time is 6:33 ]
Art for the album reissue was done by Alfreda Benge, Wyatt's wife