Crumhorns or Krummhorns are instruments which are similar to recorders in their fingering system, but are otherwise quite different. The name refers to the characteristic letter “J” shape of the instrument and derives from an old German word meaning “curved” — same root as our English word “crumpled.” Krummhorns use a double reed, like the modern oboe or bassoon, but unlike those instruments, the reed is not held between the lips, but rather encased in a wooden capsule at the top of the instrument (a feature that first appears in paintings around the year 1490). As Praetorius points out, the Krummhorn thus works more in the manner of the bagpipe by using the wind pressure in the chamber around the reed to start it vibrating.
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