Zuverläßige Anweisung Claviere und Orgeln behörig zu temperiren und zu stimmen - Sorge, Georg Andreas 1703-1778; Fritz, Barthold 1697-1766 (Leipzig Bad Lobenstein Authenrieth Sorge, 1758)
Georg Andreas Sorge (1703-1778) was a German organist, composer and, most notably, music theorist.
Sorge was admitted as a member in Lorenz Christoph Mizler's 'Correspondierender Societät der musicalischen Wissenschaften' in 1747, as the 15th member after Johann Sebastian Bach. Several disputes arose. Initially it was about a new tonal system, of dividing the octave into 55 microintervals, introduced by Georg Philipp Telemann. Since Telemann had only formulated the general conditions of his system, the Society, which was very involved in mathematical questions, insisted on receiving the exact mathematical calculation from the author. Since Telemann was not prepared to do this and was obviously neither aware of nor interested in such calculations, Sorge presented these mathematical definitions of Telemann's system in his writings after a dispute with the Society member Christoph Gottlieb Schröter. Sorge's qualified writings on the connection between mathematics and music were probably received with great enthusiasm by some interested members of the 'Societät'. Thus, from 1750 onwards, he attempted to take the place of the Society's secretary Mizler, but was unable to push through this request. Mizler was very annoyed by Sorge's actions, which resulted in disputes that lasted for years. The Society was considerably weakened by this and then dissolved from around 1761.
nebst einem Kupfer, welches die Ausmessung und Aisrechnung der Temperatur, wie auch das Telemannische Intervallen-System ec. darstellet auf Veranlassung Herrn Barthold Fritzens, Instrumentmachers in Braunschweig herausgegebenen mechanischen At zu stimmen, und zur Vertheidigung gegen deßelben Angrif entworfen
Keywords: Telemann, Georg Philipp -- 1681-1767; 18th Century (1701-1800); Organology; Tuning; Temperament; Germany; Adlung; Sorge; Fritz, B; Telemann, J.M.; temperatuur; zuiverheid; klavichord_Duitsland 18e eeuw; koortoon; monochord; Bendeler; Cramer, J.T.; Hofmann, J.G.; orgelpijp mensuren; Otto, J.D.; Schlegel, J.C.; stempijp; Völker, J