MediaServer

ClearPlaylist

Clears the now-playing playlist on the assumed/specified/elicited player, stopping playback in the process.

Invocation options (choose based on grammar-fit):

Alexa, [ open / start / launch ] MediaServer
Alexa, [ ask / tell ] MediaServer [ to / for ] …

clear playlist
clear the playlist
clear the playlist in {Player}
clear the playlist of {Player}
clear the playlist on {Player}
clear the playlist in the {Player}
clear the playlist of the {Player}
clear the playlist on the {Player}
clear the playlist of the {Player} player
clear the playlist on the {Player} player