Fixes harmonicas acting like muzzles (and runtiming instead of properly muting you too.)

code/game/objects/items.dm

@@ -204,6 +204,8 @@ GLOBAL_VAR_INIT(rpg_loot_items, FALSE)
 		msg += "*--------*"
 		to_chat(user, msg)
 
+/obj/item/proc/speechModification(message)		//For speech modification by mask slot items.
+	return message
 
 /obj/item/attack_self(mob/user)
 	interact(user)

code/game/objects/items/devices/instruments.dm

@@ -140,6 +140,12 @@
 	w_class = WEIGHT_CLASS_SMALL
 	actions_types = list(/datum/action/item_action/instrument)
 
+/obj/item/device/instrument/harmonica/speechModification(message)
+	if(song.playing && ismob(loc))
+		to_chat(loc, "<span class='warning'>You stop playing the harmonica to talk...</span>")
+		song.playing = FALSE
+	return message
+
 /obj/item/device/instrument/bikehorn
 	name = "gilded bike horn"
 	desc = "An exquisitely decorated bike horn, capable of honking in a variety of notes."