Updates piano path (#20839)

* Updates piano path

* ops

code/modules/instruments/objs/structures/piano.dm

@@ -1,5 +1,4 @@
-/obj/structure/piano
-	parent_type = /obj/structure/musician // TODO: Can't edit maps right now due to a freeze, remove and update path when it's done
+/obj/structure/musician/piano
 	name = "space minimoog"
 	icon = 'icons/obj/musician.dmi'
 	icon_state = "minimoog"
@@ -7,10 +6,10 @@
 	density = TRUE
 	allowed_instrument_ids = "piano"
 
-/obj/structure/piano/unanchored
+/obj/structure/musician/piano/unanchored
 	anchored = FALSE
 
-/obj/structure/piano/Initialize(mapload)
+/obj/structure/musician/piano/Initialize(mapload)
 	. = ..()
 	if(prob(50) && icon_state == initial(icon_state))
 		name = "space minimoog"