If you can fit all the performers (with their instruments) into a relatively small space, then you are listening to chamber music. Although chamber music is now frequently presented on a large stage in a full-sized concert hall, most chamber music was originally intended for more intimate spaces, beginning with the palace chambers that gave the art form its name. Chamber music can be a single vocalist-pianist duo, a string quartet, a wind octet, or a chamber orchestra. The potential combinations are practically boundless. By putting only one musician on each instrument type, chamber music gives the artists more flexibility to communicate with one another and, of course, with the grateful audience.