Ehh, so hard to find professional feedback on studio recording of accordion. It's still pretty exclusive and rare (there is even no tag for it here!), especially the most high end accordions, which i have (it's from Yupiter, an accordion with converter for 10000 bucks. I perform with it on music competitions, and it's sound is almost PERFECT, with only little compromises).
When recording, it almost always gets colored, especially those high pitched sounds - the treble is unnaturally boosted. Totally unacceptable when performing something classical, it ruins the whole royalty and perfection of sounds this instrument can making.
Anyway. I'm looking for ANY PROFESSIONAL advice on recording accordion, particularly about choosing a microphone (what specs should I look for, and some examples). Also maybe some of you have experience about those built-in mic systems for accordion, I have no idea how they sound?