Practical Alternate Fingerings for Flute by Wayne Hedrick
The Virtual Boehm Flute
by Andrew Botros
allows searches for:
* alternative fingerings for trills and for rapid passages: ask for the required note, and specify which keys would or would not be convenient to use.
* multiphonics. ask for two or three notes and it will tell you if they can be played as a chord and, if so, what fingering to use.
* gives the predicted response of the flute for any of the 26,000 possible fingerings.
Fingerings for six- and eight-keyed Flutes contributed by John D. Chovan