Carl Ernst Naumann (15 August 1832 – 15 December 1910) was a German organist, composer, conductor, editor, arranger and musicologist.
[1] He published a treatise, Über die verschiedenen Bestimmungen der Tonverhältnisse und die Bedeutung des pythagoräischen oder reinen Quinten-Systems für unsere heutige Musik (The Various Definitions of Pitch Proportions and the Meaning of the Pythagorean Perfect Fifths System for Music Today) (Leipzig, 1858).
He prepared six volumes of Bach's cantatas and keyboard pieces for publication as well as a nine-volume edition of his organ works.
The similarity of Brahms’s music to that of late Beethoven was first noted in a letter from Albert Dietrich to Ernst Naumann on 5 November 1853.
[6] On 3 March 1870, with the Akademischer Gesangverein of Jena, Naumann conducted the first public performance of Brahms's Alto Rhapsody, with Pauline Viardot as soloist.