changed from bt to usb card

mpd.sh

@@ -25,13 +25,8 @@ docker run -it --rm --device=/dev/snd:/dev/snd --name mpd -p 6600:6600 -p 8000:8
 apk --no-cache add mpd mpc
 
 cat <<EOF | tee /etc/asound.conf
-pcm.!default {
-        type plug
-        slave.pcm {
-                type bluealsa
-                device "$btid"
-                profile "a2dp"
-        }
+defaults.ctl.card 1
+defaults.pcm.card 1
 }
 EOF