...And everyone who mines this coin tries to dump his coins to the market. That's why recovery of this coin is not easy as always.
Speak for yourself - I haven't sold a single Musicoin since I started mining it about 4 months ago. I've even bought some on Bittrex.
If you are mining MUSIC just to sell it as soon as you get it then you picked the wrong coin; ETH or XMR would be two much better choices for that.
Good for you. You could be one of the exceptional miners. But the rest of many miners don't think like you. They are just earning and selling. This is understandable. This is their job or their way to earning money. But many of them do not even follow the market or the market conditions.