Keywords: Vogler1200dpi.jpg de Grafik aus Georg Joseph Vogler's Tonwissenschaft und Tonsezkunst 1776 en Graphic from Georg Joseph Vogler's Tonwissenschaft und Tonsezkunst 1776 a 'round tone circle' which contains the complete model in all three possible transpositions See en Omnibus progression PD-old Chromatic circles Georg Joseph Vogler |