The first reference to a slide instrument was probably trompette des ménestrels, first found in Burgundy in the 1420s … See more

See: Clarion
The trombone developed from the buisine trumpet. Up until 1375 trumpets were simply a long straight tube with a bell flare.
There are various uses of sackbut-like words in th… See more

Sackbuts come in several sizes. According to Michael Praetorius, these were:
The pitch of the trombones has (notionally) moved up a semi-tone since the 17th century, and this is explained in the section on pitch. … See more

The bore size of renaissance/baroque trombones is approximately 10 mm (0.39 in) and the bell rarely more than 10.5 cm (4.1 in) in diameter. This compares with modern tenor trombones, which commonly have bore… See more

Until some time in the 18th century, the trombone was in A and the pitch of that A was about a half-step higher than it is today—460–480 Hz. There was a transition around the 18th century when trombones started to b… See more

The sackbut was described as suitable for playing with the 'loud' ensembles in the outdoors, as well as the 'soft' ensembles inside.
The alta capella bands are seen in drawings as entertai… See more