A chamber orchestra is a small ensemble of musicians that typically consists of 15 to 40 players. It features a mix of string, woodwind, brass, and percussion instruments, allowing for a more intimate sound compared to larger orchestras. Chamber orchestras often perform classical music, including works from composers like Wolfgang Amadeus Mozart and Ludwig van Beethoven. These orchestras are known for their flexibility and versatility, often performing in smaller venues such as concert halls or community centers. They can also adapt their repertoire to include contemporary pieces and arrangements, making them accessible to a wider audience.