I work on C flutes, piccolos, alto flutes in G, Bass flutes in C, and, yes, even the occasional contrabass flute. I work on modern and vintage instruments, which means that I know a bit about the fun and funky flutes of the latter part of the 18th and the 19th century. There really is not much that I can do with a baroque instrument given that it has few if any keys and most of my work focuses on mechanisms and pads. And while I’m comfortable working with wooden instruments, the baroque wooden flute may have issues that I cannot resolve.
I confess that once I fiddled with a sousaphone’s sticky valve, but other than that I am a flute-exclusive person. And I enjoy working with flutists of different genres who play different kinds of flutes and instruments. But if you’re a doubler don’t try handing me your saxophone and pretending that it’s a bass flute: I’m smarter than I look.