Other Forms
There was practically no technical difference between the bent chanter of the bladder pipe and the cromorne, the only distinction being the form and size of the air-chamber, either the bladder or the wind-cap, in which the reed was set in vibration. The player blows air into the bladder through the insufflation tube, or through the raised, slit-shaped opening of the wind cap, placed against the player's lips. This earlier Italian form of bladder pipe is found illustrated at the end of the 15th century in the Book of Hours, known as the Sforza Book (British Museum).
Read more about this topic: Bladder Pipe
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