His output was colossal, with almost 700 published opuses.
It has also been incorporated into larger artistic opuses such as operas and ballets.
Although spread over three different opuses, he did go on to complete an important set of 24 preludes in all the major and minor keys.
The book is distinguished by many special research materials and a rediscovery of many forgotten authors opuses after many decades of obscurity.
His complete works consist of 67 opuses which are mainly for the flute including solo pieces and piano accompanied pieces.
Although his work comprises more than two hundred compositions, including 90 opuses published in his lifetime, it largely remains ignored.
His early opuses focus on court life and imperially assigned poems.
Kaprl composed about fifty opuses, mainly solo piano, vocal, and chamber music.
