"Important" is a subjective term that is best dealt with by considering which pieces are the most well-known, or famous.
Among Beethoven's piano sonatas, one would consider the Pathétique, Moonlight, Waldstein and Appassionata to be the most famous.
Beethoven's 9 symphonies are all brilliant, but perhaps the better known ones are the "Eroica" (his third symphony), the rich and penetrating Fifth Symphony (Symphony No. 5 in C minor), and the Ninth Symphony (Symphony No. 9 in D minor) which, unlike preceding symphonies, actually made use of choral parts in the well-known "Ode to Joy".
Beethoven also wrote a short, romantic composition, the Bagatelle in A minor, that became known as "Für Elise". It was written in April 1810 for Therese Malfatti, whom Beethoven was considering marrying at that time - a marriage which never eventuated.
Equally famous are his one and only Opera, 'Fidelio' and the 'Archduke Trio', or Piano Trio no.7.
Beethoven wrote 32 piano sonatas (some sources say 38), more than any other composer.
He has 567 by what I have heard
surprise,.......
Beethoven scored for the entire symphony orchestra. However, many of his compositions were also for string quartets, string trios, wind quintets, wind octets, and so on. If the voice can be considered an instrument, not many people area aware that Beethoven wrote well over a hundred liedeer, or songs. Beethoven was the first composer to score the human voice as an instrument within the symphony (9th Symphony). In addition, Beethoven was well known for his piano compositions, in particular the piano concertos and the piano sonatas.
Composition is a story mode of writing. 1. Personal Narrative 2. Short work of Fiction 3. Essay 4. Dramatic work 5. Poem
Schubert's music is heavily influenced by Beethoven. He used Beethoven's compositions as harmonic models for his compositions. For examples, his Impromptu in A flat (Op 142/2) is a pure reminiscent of Beethoven's Piano Sonata in A flat major (Op 26).
Beethoven wrote classical
Beethoven is also the name of the artist lol
Beethoven wrote 20 Quartets!
The ideals of the French Revolution had a large impact on Beethoven. Most of his compositions are based around brotherhood, equality and liberty.
I would try classical music archives, to find a complete or mostly complete listing of Beethoven or any other composer's compositions. You could also obtain an anthology that lists everything he wrote, but that may be hard to obtain--depending on your resources.
Beethoven wrote works on commission for various members of the royal and political families during the 18th and 19th centuries. Most famously might be his relationship with the Austrian nobleman Andrey Kirilovich Razumovsky to whom Beethoven dedicated his op. 59 string quartets and the 5th and 6th symphonies.