I did this video - about how you could clip a mic to a flute. Handy if you need to do a live recording where for either the PA or just for separation, you need to get a mic close in and keep it the same distance from the instrument. Difficult to do with a mic one a boom, as the players never stand still. I used the Shure SM7B as sa comparison and then mounted a cheap lav mic in a small clamp.