1721—Hamburg, Germany
Friedrich Erhard Niedt’s Musicalischer Handleitung discusses trombone, including mention of alto, tenor, and bass trombones. In the second edition, edited by Johann Mattheson and published in 1721, Mattheson appends the following: “Because the trombone is an instrument which is known to few, except for trained wind players, I would like all the more to present its precise compass, especially since, in the First Edition, it was dreadfully skipped over, and since many composers, who would like to write music for trombones, because they sound so splendid, do not know how to write for them.” The alto trombone is discussed as an instrument in the key of D, the notes available in first position being listed as d, a, d’, f’, a’, etc. (Niedt 151-152).