Introducing the Recorder Workshop Irish whistle in DThe Irish whistle, also known as the penny whistle, Flageolet or just plain old whistle, is an instrument with a plastic or wooden mouthpiece and a metal or ABS body tube. They are fairly easy to play and the fingerings are similar to the saxophone, clarinet, and flute. This whistle is a great way to introduce someone to playing a musical instrument and is lots of fun for all ages! The 921C Irish whistle from Recorder Workshop is really easy to play and offers superb tuning and tone. This has a 1 piece ABS construction and comes supplied in a matching pouch.