Yes like I mentioned before the deadline was just way too short for a coin that was created back in early 2017. I think the deadline should of been at least 6 months. Especially if your main source of info is Bitcointalk forum. I think on their twitter or medium article this was mentioned earlier.
Anyone know how many MUSIC was exactly converted? So far on their smart contract there are 2 billion coins.
Due to the __Rediculously__ short lead time on the swap, which I only found out about by a pure fluke, I would hazard a guess that there is a small fraction of those coins that were converted. The rest of the unclaimed coins have likely (knowing the shitty tactics that the devs of this coin use) gone to the devs.