Augustus Frederic Christopher Kollmann

Augustus Frederic Christopher Kollmann (21 March 1756 – 19 April 1829) was a German-born composer and musical theorist who lived and worked in England from 1782 until his death.

[7] In 1779 he was admitted to an academy for schoolmasters, where he learned a systematic method of teaching that he applied afterwards when acting as a musical tutor.

"[12] In 1799 the leading musical periodical of the day published a diagram created by Kollmann in the form of a "sun of composers".

[2] In An Essay on Musical Harmony he said that, when playing alone, "the organ and other keyed instruments should be unequally tempered, though not so much as some tuners do, as to produce chords which are really offensive.

"[14] In An Essay on Practical Musical Composition he argued that a concert could represent a confrontation between the parts, as in C.P.E.

"[15] He was the first to completely disregard the alternation between tutti and solo as the basis for a concerto's organisation, replacing it with a harmonic formula.

[16] A friendly reviewer of his A Practical Guide to Thorough Bass (1801) began, "This work, the utility of which will be obvious to every musical reader, is conducted in that methodical and systematic plan for which all Mr. Kollmann's didactic publications are distinguished.

"[17] Kollmann wrote and compiled an edition of the Quarterly Musical Register that was published on 1 January 1812.

[21] Joanna first sang in public on 13 March 1806, performing a "scena" by Mozart at a New Musical Fund concert.