We're all now waiting for the .MUSIC new gTLD to launch and many predict it will be a success. If I was in the music business, I'd definitely consider changing my domain name to one of these. Of course I'd keep my old domain name but changing to a ".music" one would be my move.
New gTLDs are ten years old now and they are here to stay; the "music" sign is universal, it is not French, but it is know from all ;-) so chances are high that such a domain name extension meets with adoption.I don't follow many people on Twitter, but I follow .MUSIC founder Constantine Roussos. I once met him in the UK and the guy had a strong fight in front of him with seven more applicants who wanted to create this same registry and I was pretty sure that he wouldn't win that war: the guy had Amazon and Google in front of him...
...but he won: the official .MUSIC website says: "Supporting organizations with members representing over 99% of music consumed globally". What a success.