Do you have the song Born Again? It was released in 1998 on the First Love project. It was some kind of old demo that Keith Green did.
I have the Firewind musical from 1976 that features the original release of Walk And Talk, Keith's duet with Barry McGuire. I think he contribures some piano to the rest of the record, but no vocals.
Keith also sings background vocals on Terry Talbot - No Longer Alone from 1976 and on Matthew Ward's first solo album. This has the song Summer Snow. Keith never recorded that for an album. The version on The Ministry Years is a demo recording.
I believe Keith also sang background vocals on a Good News album.
You check
http://www.one-way.org/jesusmusic for some more details on these releases.
All the live-recordings I have came from Terje. Perhaps you could try and contact shaabyi. I know he has lots of 70s bootlegs.
