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):

"

A forked fingering is a fingering in which an open hole has covered holes below it: fingerings for which the uncovering of the holes is not sequential. For example, the fingering 0123 (G5) is not a forked fingering, while 0123 56 (F5) is a forked fingering because the open hole 4 has holes covered below it – holes 5 and 6. Forked fingerings allow for smaller adjustments in pitch than the sequential uncovering of holes alone would allow. For example, at the same air speed the fingering 0123 5 sounds higher than 01234 but lower than 0123. Many standard recorder fingerings are forked fingerings. Forked fingerings may also be used to produce microtonal variations in pitch.[citation needed]