I think the deadline is VERY SHORT for the conversion, basically we got less than 1 month to convert our old MUSIC to the ERC20 MUSIC tokens or they are lost forever. Seems that doing this most of the old coins will get lost since many forgot about this project a couple of years back.
Out of luck, I just stumbled upon this thread and found that they is a conversion going to go around. I think that people should be given more time, maybe 6 months at least for the conversion period.
All that is needed to be done, if you have Musicoin holdings, is to send your MC to Dove exchange, at
https://dovewallet.com/en.
They are handling the swap. On Dec 15, any MC holdings on Dove will be matched with a new wallet containing the same number of new tokens as your MC holdings.