Some friendly soul uploaded a complete rip of 1972’s The Amazing Spider-Man: A Rockomic! album. According to a Newsarama piece on this classic,
He is referring to the SPIDER-MAN ROCKOMIC, (“BEYOND THE GRAVE”) that guest starred Doctor Strange, as Aunt May is kidnapped by the Kingpin and had an interior spread illustrated as a series of 5 comic strips by John Romita Sr.
The ROCKOMIC (released in 1972 by Budda Records) is an opera (or sorts) with spoken acted lines and sung rock opera songs interspersed throughout.
Spidey is played by actor is Rene Auberjonois, and the songs are by Ron Dante (most famously from the Archies) and a renamed band called “the Webspinners”.