Finally got around to listening to this. As you point out its an early rough cut with counts at the start and songs that on the LP had a fade out that here just go on and on and then abruptly stop. Also the blistering guitar solos are mixed so low that they are almost impossible to hear, which is really too bad. But all that said, this is a real find! Its so interesting to hear the quad mix when not only has the final mixing of levels not been completed, but the track lineup hasn't been finalized! I always assumed the quad mix down came later in the process but obviously that's not the case! So interesting!The band was called Half Nelson for the first album produced by Todd Rudgren and on Bearsville label. and it is really very unique, the first track is Wonder Girl, great song.
Also the album "Introducing Sparks":
In 2014, a fan posted online that they had inadvertently discovered a 1/4" 4-track 7-inch 7.5ips reel to reel tape of a quadraphonic mix of 'Introducing Sparks' which revealed a possible early incarnation of the album. The tape contained 8 songs, including two fully produced unreleased songs ('Kidnap' and 'Keep Me'), but excluded three songs from the final album release ('Forever Young', 'Girls On The Brain' and 'Over The Summer'). All songs had countdown intros and cold stops instead of fade outs. This version also appeared to be an early mix, as some sounds were either missing from the songs or mixed differently. In particular there is the addition of background conversation opening, closing, and running throughout the song, 'Goofing Off'.
If you don't have it you should, great quad