You can uninstall or removes an installed asc-music package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,
$ sudo apt-get remove asc-music
If you would like to remove asc-music and it's dependent packages which are no longer needed from Ubuntu,
$ sudo apt-get remove --auto-remove asc-music
If you use with purge options to asc-music package all the configuration and dependent packages will be removed.
$ sudo apt-get purge asc-music
If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.
$ sudo apt-get purge --auto-remove asc-music