Ohhhh.. Hmmm.. is it Alkan's "Le Festin D"Esope"??
It is a section from one of his 'larger' works. Here is a larger sample. if you can't get it now then I'll just have to give it up...
Okay, then, here is a moderately difficult one. (The pianist in this recording is a rather famous Russian virtuoso... But I figure it's fine since he's dead and this recording is also available free online anyway. Bonus points to whomever can guess the pianist!)
Here's another musical hint. It may help you narrow down the composer by means of style.... from there just listen to the instrumentation and you should have the piece.As far as style goes, in this section listen to the piano and the particular doubling it uses, which is a common feature of this composer....
Ooh! That's from Ravel's piano trio! First movement.
Bonus points to whomever can guess the pianist!
Good old S. Richter?