In the 17th c. the shawm, heard here, developed into this double reed instrument
The double reed that produced the sound was held in place by a 
device .... reaching into the fourth or fifth octave late in the Classical period, as 
heard in the... [DOC] [TLE] Musica Antiqua - Iowa State University MUSIC [PAR] Here is a bit about some of the instruments you will hear played by Musica.