What Is Chamber Music  Chamber Music is traditionally music
played by a small group of musicians (usually between three and
nine players). The "chamber" refers to the practice,
particularly common in the nineteenth century, of performing
such music in a chamber (small hall) or room in order to do
justice to the intimate character and finer nuances that
characterize such music. Today the practice of performing such
music in large concert halls is commonplace. There is no
conductor involved in chamber music and the individual
performers each play a solo part as opposed to an orchestra or
band where a group of musicians may all play the same part. 
Experts in the field of classical music largely agree that
chamber music is one of the most sophisticated forms of music
because it requires a most delicate sense of ensemble work as
well as superior musicality of all the individuals involved.