- Piano: Beethoven was a virtuoso pianist and composed many works for piano, including sonatas, concertos, and variations.
- Violin: Beethoven wrote several violin sonatas, violin concertos, and other works for violin.
- Cello: Beethoven also wrote cello sonatas, cello concertos, and other works for cello.
- Viola: Beethoven wrote a few viola sonatas and other works for viola.
- Clarinet: Beethoven wrote a clarinet trio, a clarinet concerto, and other works for clarinet.
- Flute: Beethoven wrote a flute sonata, a flute concerto, and other works for flute.
- Oboe: Beethoven wrote an oboe concerto and other works for oboe.
- Bassoon: Beethoven wrote a bassoon concerto and other works for bassoon.
- Horn: Beethoven wrote horn sonatas, horn concertos, and other works for horn.
- Trumpet: Beethoven wrote a trumpet concerto and other works for trumpet.
- Trombone: Beethoven wrote trombone concertos and other works for trombone.
- Timpani: Beethoven wrote a timpani concerto and other works for timpani.
Beethoven also wrote for larger ensembles, including orchestras and chamber ensembles. He composed many symphonies, string quartets, piano trios, and other works for various combinations of instruments.