What it is:
A silver plated brass adapter designed for use in Bb Piccolo's that require a cornet shank mouthpiece.
What it does:
It puts the Bb pipe in the key of "A" without having to pull the tuning bit way out. This results in better intonation and a more even, comfortable feel than most "A" leadpipes.
How it works:
By altering the air column at the front end (leadpipe) of the horn, the pitch drops a half step without changing the timbre or feel of the instrument.