- Piano: Beethoven was a virtuoso pianist and wrote many works for the instrument, including sonatas, concertos, and variations.
- Violin: Beethoven wrote several violin sonatas and concertos, as well as a string quartet.
- Cello: Beethoven wrote several cello sonatas and concertos, as well as a string quartet.
- Clarinet: Beethoven wrote a clarinet trio, a clarinet sonata, and a clarinet concerto.
- Flute: Beethoven wrote a flute sonata and a flute concerto.
- Oboe: Beethoven wrote an oboe concerto.
- Bassoon: Beethoven wrote a bassoon sonata.
- Horn: Beethoven wrote a horn sonata and a horn concerto.
- Trumpet: Beethoven wrote a trumpet concerto.
- Trombone: Beethoven wrote a trombone concerto.
- Timpani: Beethoven wrote a timpani concerto.
In addition to these instruments, Beethoven also wrote for larger ensembles, including the orchestra and the choir. His orchestral works include symphonies, concertos, and overtures. His choral works include masses, cantatas, and songs.