In the 60's I worked on an underground newspaper (remember those?) and a bunch of the guys were gay. They said that Donovan was gay, and that his song "Try and Catch the Wind" was about gay relationship.
Geoff Morgan has songs about male relationship and a really eerie one about AIDS that doesn't mention that word.(1980 ish, I think).
Fred Small wrote Everything Possible, one of my all time favorite lullabyes, for lesbian Janet Peterson of Motherlode.
Was it Steve Goodman who wrote the song with the chorus
"There are men who love women who love men
There are women who love women every now and then
There are men who love men because they can't pretend
To be men who love women who love men."
And for totally off the wall funny raunchy rock and roll lesbian music, let me reccommend my old church camp buddy Kay Turner, lead singer for the Austin TX band, Girls In The Nose. I like the first album best. Caveat: you have to be able to like catspaw type humor to enjoy this stuff. Talk about bad taste awards (NPI), one of the songs is "Come and Die", and another is called "Bite Me"
Blessings,
Barbara