Ludwig van Beethoven was a German composer and pianist who is widely considered to be one of the greatest composers of all time. His works span multiple genres, including sonatas, trios, classics, and sonatinas. Sonatas are musical compositions for one or two instruments, usually in three or four movements. Trios are pieces of music written for three instruments or voices. Classics are works of art that have stood the test of time and are considered to be of the highest quality. Sonatinas are short, often light-hearted pieces of music. All of these works are part of Beethoven's extensive repertoire.