After playing Bulgarian, Macedonian and Turkish kaval by myself for many years, I have started playing kaval in a Balkan folk music ensemble that includes accordion, clarinet, mandolin, guitar, oud and baglama (although not all at the same time, of course) …
Since then, I’ve been struggling with the intonation of all three of my kavals. At worst, I can be around a quarter-tone flat of concert pitch, which definitely sours the song! The three-piece Bulgarian kaval in D and the one-piece Macedonian kaval in C are the worst; the cheapo Turkish kaval that I bought from Lark in the Morning is only ever-so-slightly flat.
Does anyone else have this problem?
I’ve found three ways to sharpen the pitch … One, by angling the kaval even more sharply, drawing the foot end closer to my shoulder, but this makes it very hard to play and is physically uncomfortable … two, by blowing much harder and increasing the air flow across the rim, but this turns a beautiful, soulful instrument into a single-voiced steam whistle … and three, by pulling the kaval away from my mouth and allowing my lips to only just barely make contact with the rim … but this makes playing the kaba register more difficult.
Other shifts in embouchure really haven’t made much of a difference.
Any thoughts?