This hasn't been tested out yet.If you have a TMGO and a Music star you can test it out.You can be the first one to test it out!If you don't want to or don't have them both, you could maybe ask someone to try it out for you.
I don't think anyone's explicitly answered this one yet, but to be clear, yes, a Music Star can connect with a Tama-Go, along with the V5 series connections (so, including V5.5, apparently): https://www.tamatalk.com/IB/index.php?showtopic=169097 (scroll down to July 1, 2010, where binary does connection experiments). When in doubt, here's the ultimate connecting guide as well: https://www.tamatalk.com/IB/index.php?showtopic=169097.
Yes, the Music Star and Tama-go can connect. I have attempted to mate them but I got tired of waiting and let my Tama-go get married at the Date Place. I guess I'll give my result once I un-pause my Music Star.