I have a new arrangement up for beatboxing flute quartet. It's Metallica's "Enter Sandman"! You can listen to a live recording and buy the sheet music here: https://nikkinotes.com/EnterSandman.html
This is part of Sheet Music Plus' 2017 Chamber Music Contest, the person with most sales the next two wins! So if you are thinking about buying for an upcoming concert, go ahead and take the plunge and get it. It would help me out!