Getting started
When to start?
Whenever you want! But it will probably be easiest if you have good command of standard techniques first - think ~ intermediate or upper intermediate level.
I recommend getting comfortable with playing harmonic overtones of standard fingerings first, then diving deeper with multiphonics!
Here are some of my favorite resources:
flutepop sheet music
I arrange pop/rock music for flute multiphonics. You can find the sheet music here! All of my arrangements include Reference fingering charts at the back.
Available for purchase with SheetMusicDirect.Com or SheetMusicPlus.com - search “K. Margot Moore” or use the links on the Sheet Music tab.
Books
Tone Development through Extended Techniques by Robert Dick
This is the book I used to get started
Great exercises and learning order, starting with standard harmonics and progressing deeper
The Other Flute by Robert Dick
Considered a landmark resource
Contains microtonal fingerings and a large multiphonics compendium
I find "his “Tone Development” book easier to approach/learn from for your first book
and many more!
Online
“Multiphonics Flute Fingering Chart” by Antonia Makridakis https://musescore.com/user/200234/scores/8373810
Curated subset of very playable multiphonics fingerings, sorted by high note
Flute Colors https://www.flutecolors.com/
online portal, book, and magazine for extended techniques
fingering database, sorted by low note. (Note: many are easy to play, but a few are not playable)
also feature sheet music, across a broad range of extended techniques
Virtual Flute (Fingering Chart) by Andrew Botros - https://flute.fingerings.info/
Computer-generated list of potential multiphonics fingers. Not all are playable or physically possible (unless you have more than 10 fingers). But a great place to treasure hunt, if you can’t find the fingering you’re looking for anywhere else!