'(<a href="http://www.j-archive.com/media/2007-12-28_DJ_01.wmv">Jon of the Clue Crew blows a trombone.</a>)  Performing the same function as the valves on modern brass instruments, this moveable part of the trombone dates back to the 15th century'
the slide
MUSICAL INSTRUMENTS: Performing the same function as the valves on modern brass instruments, this moveable part of the trombone dates back to the 15th century
Performing the same function as the valves on modern brass instruments, this moveable part of the trombone dates back to the 15th century
Performing the same function as the valves on modern brass instruments, this moveable part of the trombone dates back to the 15th century
MUSICAL INSTRUMENTS
the slide
MUSICAL INSTRUMENTS