Rachmaninov: Trio élégiaque in G Minor, № 1.

Cellist: Mischa Maisky. Violinist: Vadim Repin. Pianist: Lang Lang.

I used this score: http://javanese.imslp.info/files/imglnks/usimg/0/06/IMSLP03534-Piano__whole_score_.pdf.

The CD from which I extracted this recording: http://amzn.to/SM41RG.