best music for studying

As much as I enjoy listening to symphonies, concerti, and piano solos, it’s really hard for me to concentrate on my studies while listening to these.  Instead, I’ve turned to chamber music (at low volumes).  I bought the above CD’s to add to my chamber music collection and as an added incentive to study harder and longer.  I don’t know what it is about chamber music that intrigues me–perhaps it’s the ‘Bach effect’? 

So far, my favorite chamber music includes the Brahms, Schubert, and Schumann Piano Trios.  If you know of any good recordings out there, please pass the sugar!