![0](../b/b-30a,3.jpg)
Chromatiphon
System: Hugo Stark
unisonoric, logical
(Collection Oriwohl, Nr. B-30)
Manufacture: A.B.C.-Werk, Hugo Stark (Auerbach in Vogtland, Saxony) 1920,
Patent 51c/34/337361 from 1921
This unisonoric instrument was developed and built by Hugo Stark (1873-1965).
Both manuals follow the same logical system, but are arranged in opposite directions in terms of pitch.
As with the accordion 5-rank C-fingering and 6-rank Micklitz system, two coupled auxiliary ranks result in identical fingerings for all keys on one side, as well as the same fingering patterns for both sides.
William Wakker in the USA builds Concertinas with the Hugo Stark system.