Franz Schubert was an Austrian composer who bridged the classical and romantic periods of music. He is known for his lyrical melodies and expressive harmonies. Schubert's compositions include symphonies, chamber music, piano music, and art songs. His music often explores themes of love, nature, and human emotions. Schubert's most famous works include his 'Unfinished Symphony,' his 'Trout Quintet,' and his song cycle 'Winterreise.'