MediaServer

Mute

Mutes the volume of the specified/assumed/elicited player.

Invocation options (choose based on grammar-fit):

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

mute
mute {Player}
mute the sound
mute this player
mute the {Player}
mute {Player} player
mute the {Player} player