What it sounds like, and the records to hear it on.
The violoncello (abbreviated to cello) is a bowed string instrument. A person who plays a cello is called a cellist. The cello is used as a solo instrument, in chamber music, and as a member of the string section of an orchestra. It is an instrument with many voices. It’s possibly one of the most versatile orchestral instruments, and with a range of nearly four octaves, it possesses immense technical possibilities. Its sound is rich and warm, both in the low and high registers .