To this day it is still often claimed that the DUCA repertoire is too small and uninteresting. Given the impressive range of rolls, we cannot agree. The DUCA system was evidently interesting enough for very well-known pianists who also recorded for Welte or Hupfeld to make recordings here – as well as many promising pianists who did not record for Welte or Hupfeld. Examples include: Arthur Friedheim, Arthur Schnabel, Xaver Scharwenka, Erich Wolfgang Korngold, Teresa Carreño, Ferruccio Busoni together with Michael von Zadora, Germaine Schnitzer, Helene Moillet-Gobat and many more.
It is true that the number of rolls is noticeably smaller compared with Welte and Hupfeld – nevertheless, with a repertoire of well over 1,500 music rolls there is no lack of choice. A unique feature of the DUCA is undoubtedly its large and beautiful repertoire of dance and light music.