I don't believe any of those songs from the Paley sessions have been booted.
Although the Paley-BW song "Goin' Home" (not the TLOS song, which is entirely different) has a line about magic lanterns in it.
As for the Holy Man with Brian May and (I believe) Roger Taylor, I guess there were some record company issues. Never out, never (as far as I know) booted.
That kind of makes me excited to one day hear them, hopefully. As much as I hate not hearing stuff now, it really does make it sweeter when they finally become available.
I always thought that the TLOS version of "Goin' Home" was a reworking of that song? It would be neat to put them back to back and listen. I might just do that! Also, never noticed the "magic lanterns" line in there. Thanks!