How many musicians usually perform in a chamber music ensemble?

Chamber music is typically composed for small ensembles of instrumentalists, generally ranging from two to eight players.1

A defining characteristic of these groups is that there is usually only one player per part, and the ensemble typically performs without a conductor. Because these groups are designed for intimate settings—such as a home or a small hall—they prioritize refined musical ideas and acoustical balance over the large-scale sonority found in orchestral music. While there are many standard configurations, such as the string quartet or various piano trios, the term encompasses a wide variety of instrumental combinations.123