I agree with Jack that clarinet's a PITA. Most of the sound comes out of the tone-holes, so you want to point a mic at rightangles to the middle of it, then you want to back it off to even up the distance between the notes, then you've got a low signal so you up the gain, then you turn it down again because feedback. (I think there is some tone from the bell, if you have a spare channel & want to get that finicky. But not too close - I once had to deal with a pub "sound man" who insisted on gaffataping a mic right up inside the bell. This captures no sound at all).
Microvox used to do things with velcro - a little capsule mic on the barrel plus a gooseneck bent round over the bell. But that was a while ago. There are more serious solutions, which often seem to involve drilling holes in the woodwork and forking out large sums of money.
I'm guessing recorder would have similar problems ? I've never mic'ed one up.