There is a new full-length documentary out on Halyx, the “space rock band” that Disney created for Tomorrowland in 1981, and it is amazing (both the band and the documentary):

If you want more, the user Bangoe has been posting on his channel recordings of the band’s performance that he himself recorded as a guest at Disneyland in 1981.

And for those of you who are not familiar with Defunctland, the Youtube channel who made this, the above is only the tip of the iceberg of the great videos they make not only about old and removed rides and attractions (the ‘defunct’ part of their name), but also deep dives into Disney and general theme park history, old children’s TV shows, an incredible multi-part series on the life and art of Jim Henson, and more.  If any of that piques your interest, I highly, highly recommend a subscribe!