thank you for helpful response.
i was considering one of the km 180 series. i will try to find an opportunity to try this setup with one or two km 183 microphones, and see if i can realize the desired effect. my hope is that the differentiated stream of air within the instrument would lead to an interesting timbre-distribution when recorded with two microphones, mixed hard left and right, although obviously it wouldn't be following the rules of conventional stereo recording.
alexandra leikauf