Be Glad for the Song Has No Ending is the eighth album by the Scottish psychedelic folk group, the Incredible String Band, featuring Mike Heron, Robin Williamson, Licorice McKechnie and Rose Simpson.

[5] Part two involves the group with friends dressing up to create a short, 20-minute drama play called The Pirate and The Crystal Ball.

[6] Filming began as early as a March 1968 Royal Festival Hall concert, and was budgeted by Ominibus for what they expected to be a straightforward documentary.

A basic story line includes a pirate attempting to steal a crystal ball from three fates (Simpson, McKechnie, and Schofield).

A collage of psychedelic images relating to the pirate's past begins and ends with the sound of a baby's cry, concluding the fable.