I have lost a couple of my favorite concerts: Vancouver 11 March 1977 (Day at the Races tour), and Waterbury, sometime in 1975 (Sheer Heart Attack tour). I got these both around 1978 or 79 on cassette (yeah, I'm that old!) I've found a torrent for Vancouver on this site, but so far no download has happened - perhaps it isn't there anymore. The Waterbury concert I have found here is from 1974 and is NOT THE SAME SHOW. I believe the 1974 show was in support of Mott the Hoople. (At one point, Brian says "I remember Mott the Hoople. Who was here with us with Mott the Hoople?")
I'd particularly like the Waterbury concert. The one I had was full (except Liar was cut in the middle, however it had both the beginning and ending of the song), and it also included White Queen, a medley consisting of Lap of the Gods/Killer Queen/Black Queen/Bring Back That Leroy Brown, Flick of the Wrist, Stone Cold Crazy, Lap of the Gods Revisited (which Brian dedicated to "Young Mercury over there, who's VERY young"!), and Jailhouse Rock. Also, they opened with Procession/Now I'm Here, and Father to Son was done as a "stand alone" later in the set.
Now I know this was a complete concert, not from multiple sources, because the sound quality did not vary from cut to cut and Brian, Freddie (and I think Roger) all made references to Waterbury throughout.
If anybody could help me recover this show (and Vancouver, if possible), it would be greatly appreciated! Furthermore, I'm open to trade, but judging from what's on here, I don't have much more to offer, if anything.