All of that. I don't know how to really classify those things.
OK, off the top of my head, there are:
April 1978 demos: pure rubbish besides Trevor, but they bring the lulz.
November 1978 demos: released on iTunes.
February 1979 demos: best pre-Boy material, though oddly its worst track, the early Twilight, became Another Day's b-side.
Mid-1979: Demo of A Day Without Me.
December 1979: The Dream Is Over, from the Another Day sessions.
Boy Tour: We have poor quality live versions of Father Is An Elephant and Carry Me Home. They were never even recorded.
1982?: Be There, of imprecisely known lineage.
War and UF sessions: Demos of various songs are floating around, plus an untitled UF-era instrumental that I've given the title of Flicker And Fade
January 1986 TV Ga Ga live appearance: Womanfish and early TTYW.
25 April 1987, San Francisco soundcheck: My Time Hasn't Come, Move Out.
November 1987 (and subsequent live performances): She's A Mystery To Me.
1988?: Wild Irish Rose.
1990: Axtung Beibi out-takes.