A String Quartet is a musical ensemble typically made up of four instruments: two violins, a viola, and a cello. This combination creates a rich and harmonious sound, allowing for a wide range of musical expression. String quartets are often featured in classical music, with famous composers like Ludwig van Beethoven and Wolfgang Amadeus Mozart writing many notable pieces for this format. The beauty of a string quartet lies in its ability to blend individual voices while also allowing each instrument to shine. Performances can range from intimate gatherings to grand concert halls, making the string quartet a versatile choice for various occasions.