Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Recorder (musical instrument):

"

The recorder is supported by the lips, which loosely seal around the beak of the instrument, the thumb of the lower hand, and, depending on the note fingered, by the other fingers and the upper thumb. A practice documented in many historical fingering charts is the use of finger seven or eight to support the recorder when playing notes for which the coverage of this hole negligibly affects the sounding pitch (e.g., notes with many holes uncovered). Larger recorders may have a thumb rest, or a neck strap for extra support, and can use a bocal to direct air from the player's mouth to the windway.[citation needed]