Totally unexpected laugh-out-loud moment
The original version of Tchaikovsky's First Symphony includes an insane Russian Dance that he dropped from the published version.
The first time I heard it I laughed out loud.
I wish he'd kept it in the final version.
Original Version (1866-68)
The only known recording of Tchaikovsky's original version of the symphony was made by the BBC Scottish Symphony Orchestra conducted by Ilan Volkov, and was broadcast in the United Kingdom on BBC Radio 3 on 12 February 2007. This performance has never been re-broadcast or commercially released.
http://youtu.be/UyqV6w5Sggw
Not cued, but the the fourth movement opens @ 32:25
The Russian Dance occurs @ 35:48
For some reason, it's in mono.
I think it's my favorite performance (though the first movement has an absolutely dreadful second subject that Tchaikovsky wisely replaced).
http://en.tchaikovsky-research.net/pages/Symphony_No._1
http://en.tchaikovsky-research.net/pages/Symphony_No._1:_Recordings