Plays a song. Examples: `{{prefix}}play Whatever you write here will search YouTube` `{{prefix}}play https://soundcloud.com/sonevable/gin-wigmore-written-in-the-water-nev-edit` `{{prefix}}play https://www.youtube.com/watch?v=v372aagNItc` A range of sites are supported.
Sets a message for when a user leaves the server. Examples: `{{prefix}}farewell #general %username% left %server%… bye bye %username%…` - Sends `luke left <your server>… bye bye luke…` to #general when luke leaves your server. `{{prefix}}farewell` - Disables the farewell