If you want a music player that runs on the terminal, cmus is the way to go. Make sure you configure cmus to use software volume. You can configure software volume either through the configuration file or inside cmus. Inside cmus, press key 7 to go the configurations page and look for the configuration variable softvol. Make sure to set it to true to enable software volume.

Another way to achieve the same effect is to execute a command inside cmus. Execute the following command to enable software volume.

:set softvol=true

Tags: slackware