Franz or Frantisek Kotzwara as a composer, was known for a single work - A sonata ( The Battle of Prague ) for solo piano with violin and cello ad libitum. A recording can still be found in a catalogue . Incidentally, this work was named by Arthur Loesser as one of the two worst piano pieces ever written (The other was "The Maiden's Prayer" by Tekia Bardazewski-Baranowska , who wrote it at the age of 18, then died when she was 23).

The English version includes a movement consisting of "God save the King", although the battle was fought between the Austrians and the Prussians (under Frederick the Great) who won.

He was also said (by Fétis) to have composed sonatas, serenades and other pieces to an opus number as high as Op. 36, but none of these appear to have survived.

Little is known about his life other than he was born in Prague, and became a virtuoso Double bass or "tenor" player. He was known to have been in Ireland in 1790, where he was engaged to play in the orchestra of the King's Theatre in London , and had been in the orchestra for the Handel Commemoration in May 1791(Grove 1895).