Word of the day
conical bore
A term defining those wind instruments that are constructed with a conical-shaped tube (that is a tube that has a gentle taper along its entire length) as opposed to a cylindrical shaped tube. The conical bore instruments would include the cornet, the tuba and the horn. In the Hornbostel-Sachs classification system, these instruments would be classified as aerophones with number of 423.232.