String Quartet No. 13 in A minor is a chamber music composition by Franz Schubert, completed in 1820. It is known for its emotional depth and lyrical melodies, showcasing the interplay between the four string instruments: two violins, a viola, and a cello. The piece is structured in four movements, each contributing to its overall expressive character. The quartet is often celebrated for its rich harmonies and innovative use of form, reflecting Schubert's unique style. It has become a staple in the string quartet repertoire, frequently performed and recorded by various ensembles around the world.