ubuntu-apt-sources/nuvola-player.list

# apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 40554B8FA5FE6F6A
deb https://tiliado.eu/nuvolaplayer/repository/deb/ xenial stable beta
Upgraded Nuvola-Player PPA. 2015-10-04 00:03:25 +01:00			`# apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 40554B8FA5FE6F6A`
Upgraded to Xenial. 2016-04-20 23:21:14 +01:00			`deb https://tiliado.eu/nuvolaplayer/repository/deb/ xenial stable beta`
Upgraded Nuvola-Player PPA. 2015-10-04 00:03:25 +01:00