There's some more info in the comment section on Allspark. User D.M posts "One downside is that music by Johnny Douglas won't be featured, but from what Rob told me, it seems only the generic rock-disco theme will be left out as that was done for Spider-Man. Apparently Johnny left the show very early on so few themes that he composed specifically for Transformers ended up being reworked by Rob."
Someone asks to clarify if he means the music that Jazz is usually playing and D.M confirms this along with another quote from his interview "No, unfortunately those tracks won't be included. There were a few cues Johnny wrote that were used, but the music for the series was revamped when I came on right at the beginning, and nearly every cue was mine in those shows, although the credits were messed up in post. I wrote perhaps 15 hrs total of new music in creating the shows. He did write the My Little Pony theme, and did some great orchestration on it. He was a talented writer." The post was later edited to signify that this past statement is a general one concerning all the shows and not just Transformers.