OPUS are my favorite.
They are most generous to the artist and are in a final phase to deliver a good working product.
I wonder why Opus still lacks the volume and liquidity. Judging from the community, the white paper and the website they are far superior compared to MusiCoin
I think because they are not properly communicating with users around.
They had the same problem during the ICO. And they were saved by their community manager juarez_12 or something like that who were very responsive in both ANN and Bounty. But they are the best music project around.