The Schubert Quartet typically refers to the string quartets composed by the Austrian composer Franz Schubert. His most famous quartets include the String Quartet No. 14 in D minor, also known as the "Death and the Maiden," and the String Quartet No. 13 in A minor. These works are celebrated for their emotional depth and lyrical melodies. Schubert's quartets are significant in the classical music repertoire and showcase his innovative use of harmony and form. They are often performed by string quartets in concert settings and are studied for their rich textures and expressive qualities, reflecting the Romantic era's musical characteristics.