If playing music on MUSICOIN gets more expensive, then we have inflation imho.
Call it whatever you want. In the real world, prices of goods and services constantly increase to compensate for the ever expanding supply of fiat which is created out of thin air by the Central Bank. This is called inflation.
Musicoin's price has remained more or less constant despite increasing supply only because of high demand. If the price of MUSIC coin started falling due to lack of demand and ever increasing supply, artists would be forced to increase prices to compensate.
Like it or not, it's a serious problem. In the month of May and June, all the altcoins have had a massive jump in price but not Musicoin. Why? 164m coins were added to the supply in the last 3 months alone.