The only surviving depiction of Dietrich Buxtehude, from the painting “A Musical Party,” by Johannes Voorhout, 1674

I just added the following post to the Alto Trombone History Timeline and the Trombone History Timeline (17th century, 2nd half).

1674—Lübeck, Germany: St. Mary’s, employer of the influential organist and composer Dieterich Buxtehude, purchases two diskant Posaunen. This name (diskant Posaune) had been given by Praetorius several decades earlier as a name for the alto trombone, which he clearly depicts as a smaller, shorter instrument (see 1620 for Praetorius) (Snyder, Buxtehude revised 379).