[Pelham]

I’m not a particular fan of disco but in the case of the Bee Gees their disco era material is much better than their previous pop music.

[CommerceComet]

I take it you're not a big BeeGees fan. Personally, I like a lot of their early ballads and pop songs. Early 60s pop isn't going to be confused with classical music.

The BeeGees had a big role in the rise of disco. While not the first disco act, the BeeGees were the first previously-established stars to make the move to disco.