Details

The possibility of more and longer melodies allowed for a wide and diverse range of repertoire. This is as follows: 

cylinder 1: Ein Mädchen oder Weibchen; Das klingelt so herrlich (Mozart)  
cylinder 2: Cavatine andante palpiti varie (Gelineck) 
cylinder 3: Rondò con Variazioni (Winter) 
cylinder 4: Potpourri 
cylinder 5: Il Matrimonio segreto (Cimarosa) 

The cylinder contains the program for both the bells and the organ pipes. Moreover, the bells have a series of dampers through which the duration of sounding is controlled by a special damper key through the music cylinder. This is exceptional because we never actually see this mechanism elsewhere.

This cylinder playing work with bells and organ pipes is part of a "vanished" musical clock. The clockwork, the percussion and the cabinet that would have housed all the contents including the musical movement, are all missing.
One of the melodies is known to date from 1813, so the instrument was probably made after that. It also must have been made before 1826, the year of Winkel's death What happened to the instrument after that is unfortunately not known, until such time as it was offered at a London auction in 1987 as "Property of a Lady." 
Winkel is also known for his invention of the metronome in 1814. A musician can use this to support himself in his playing, as a metronome indicates the beat. Winkel's mechanism was the first really useful metronome. However, unfortunately for Winkel, Johann Nepomuk Maelzel from Germany managed to patent Winkel's invention earlier than Winkel himself. Therefore, it is not Winkel who is known internationally as the inventor of the metronome, but Maelzel. The Haags Gemeentemuseum is in possession of Winkel's first metronome from 1814.