Hornbostel - Sachs
Clarinets with cylindrical bore
The air itself is the vibrator in the primary sense. The standing waves are significantly confined within the instrument itself. The column of air is made to vibrate by the intermittent access of an air stream produced by means of a [single] 'reed' consisting of a lamella which periodically opens and closes an aperture, controlling the flow of air. The tubular body has a cylindrical bore, and fingerholes. The instrument is tuned by altering the length of the air column. European clarinet.
(Single) clarinets with cylindrical bore, with fingerholes
(Single) wind-cap clarinets with cylindrical bore, with fingerholes