Hence why I'm asking why we can't do FVM via singing or whistling, neither of which would prevent us from using our hands. This seems like such an obvious thing to me I was rather certain it must've already been brought up in the thread and shut down by
@yrsillar.
Flute might look cool, but it's arguably the cause for the whole Catch-22 going on; need/want better offensive capabilities, but better offensive capabilities generally require the usage of hands, while the hands are occupied playing the flute for FVM.
Hence, if that can be avoided, it'd solve a lot of problems. Though of course the flute should continue to be used whenever possible, to present a false weakpoint people can target.