@rvpiano -- Don't toss that Virtuoso! It is basically an AudioTechnica VM95 body. You can easily replace the cantilever and stylus with any AT-VM95 stylus. I've done it, as have many others. I replaced the stock stylus with an AT-VMN95ML microline stylus. Very nice improvement. There are several guides on the internet on how to do this.
MM, MC, or MI cartridge
Can somebody briefly describe the difference in the sonic characteristics of these types of cartridge, if possible?
I’ve never had a MC and I’m wondering what difference it would make.