The name comes from Greek/Latin,where "Calumus" means pipe. The Chalumeau always was regarded a shepherd's device, that had to be playedsolo. Unfortunately no Chalumeau has survived one assumes that it need to have looked much like a recorderand sounded just like the lower octave of today's clarinet. It was frustrating to play in tune. Therefore it was uninterestingfor most composers and serious musicians, and was hardly ever utilized in compositions except for some shepherd scenes. The challenge developing gadgets similar to clarinets like the Chalumeau turns into clear for those who consider whathappens if you play an upward scale on an tool just like the recorder: There are seven or eight tone holes for the lower octaveas you have gotten 10 hands and there's an octave hole. "Overblowing" or beginning an octave hole makes woodwind instruments sound precisely one octave higher than the note would sound with out overblowing aside from the clarinet, as I will show below. Using a similar fingering one time with and one with out an overblowing hole makes the tool sound in alternative hights; during this contents you speak of lower and upper register. So you in reality need seven tone holes and an overblowing hole. Learning how to play higher registers on woodwinds like a recorder is hence rather simple, and it makes things easy for the device maker: The tone holes and their distances for the higher octave are accurately an analogous as for the lower octave. Now overblowing works on clarinets, too, but the effect is various: The clarinet overblows not to the eighth tone on thescale an octave that's exactly double the frequency but to the 12th tone.

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