def volume_up(self):
        current_volume = int(self.status['volume'])

        if current_volume <= 100:
            self.client.setvol(current_volume + 5)
Service to send the MPD the command for volume up.
dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/components/media_player/mpd.py/MpdDevice.volume_up