One thing to add, the Shure SM48 is an even better choice.
Why? because, 1. it is cheaper and 2. your don't need to use an impedance matching transformer with it like you do with the SM58.
I have had to fix the mic on two local accordionists because the little transformer broke loose.
You could call Junior Martin and ask him how he does it. He makes a great snap-on Shure-based mic system. He might even take your Shure mic and be able to use it in the manufacturing process. Ask him.
JB
I have one of those snap-on style somewhat old-school Shure mic cartrdidges. It came with a Larry Miller C accordion I got in the mid-90s. I replaced it with a clip-on gooseneck mic, more easily changed among several accordions, probably around 2000. To my knowledge, it works fine. If anyone is interested in purchasing same, let me know (rwroberts585 [at] gmail [dot] com).
My European correspondant tells me about a gooseneck mic setup he has been using. What does your consist of? I am not electronically astute, by the way...
Russ Roberts
I have one of those snap-on style somewhat old-school Shure mic cartrdidges. It came with a Larry Miller C accordion I got in the mid-90s. I replaced it with a clip-on gooseneck mic, more easily changed among several accordions, probably around 2000. To my knowledge, it works fine. If anyone is interested in purchasing same, let me know (rwroberts585 [at] gmail [dot] com).
I have an SM58 setup. I could never understand why it was fine as a vocal mic, but on the accordion ( always playing through other people's p.a. ) I could never hear it in the monitors or the speakers. Until I read Big Nick's FAQs and all was revealed.
Thanks Big - I'm deeply grateful for that info.
Like the man says, Wifred, stick a pre-amp in there and Bob's your uncle. I was so impressed, in fact, that I took a new ( eighty quid! ) SM58 I had, took a very deep breath and attacked it with a 5" angle grinder, to extract the gizmo from inside the goo ( silicon? ) and made a replica.
If you can wait til Saulieu (not long now) I'll show you in greater detail.
It's worth the effort and you get that nice old fashioned appearance as a bonus.