Added expanded piano code by HornyGranny. Instead of like 8 notes, it plays all the notes (?). Improved by me.

Admin midis should probably not screw up when played by more than one admin at the same time.
Added ninja RD hacking.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@1687 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/admin/verbs/playsound.dm

@@ -8,6 +8,7 @@
 		return
 
 	var/sound/uploaded_sound = sound(S,0,1,0)
+	uploaded_sound.channel = 777
 	uploaded_sound.priority = 255
 	uploaded_sound.wait = 1