Ports a rewritten version of BAYSTRUMENTS (#11680)

* bay instruments

* k

* AAA

* remove that

* changes

* Update _instrument_key.dm

* safety nets

* @ghommie fixed

* volume

* Update item.dm

* Update item.dm

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

_maps/map_files/BoxStation/BoxStation.dmm

@@ -11677,7 +11677,7 @@
 /turf/open/floor/plating,
 /area/maintenance/starboard/fore)
 "aAs" = (
-/obj/structure/piano{
+/obj/structure/musician/piano{
 	icon_state = "piano"
 	},
 /turf/open/floor/plating,
@@ -55621,7 +55621,7 @@
 	},
 /area/crew_quarters/theatre)
 "iTU" = (
-/obj/structure/piano{
+/obj/structure/musician/piano{
 	icon_state = "piano"
 	},
 /turf/open/floor/wood,
@@ -56804,7 +56804,7 @@
 /turf/open/floor/plating,
 /area/security/main)
 "myh" = (
-/obj/structure/piano,
+/obj/structure/musician/piano,
 /obj/structure/window/reinforced,
 /obj/machinery/atmospherics/pipe/simple/supply/hidden,
 /turf/open/floor/wood,

_maps/map_files/Deltastation/DeltaStation2.dmm

@@ -26182,7 +26182,7 @@
 /turf/open/floor/plasteel/dark,
 /area/crew_quarters/bar/atrium)
 "aWX" = (
-/obj/structure/piano{
+/obj/structure/musician/piano{
 	icon_state = "piano"
 	},
 /obj/machinery/airalarm{
@@ -115313,7 +115313,7 @@
 /obj/structure/window/reinforced{
 	dir = 8
 	},
-/obj/structure/piano,
+/obj/structure/musician/piano,
 /obj/effect/decal/cleanable/dirt,
 /turf/open/floor/plating,
 /area/crew_quarters/theatre/abandoned)

_maps/map_files/LambdaStation/lambda.dmm

@@ -30338,7 +30338,7 @@
 /turf/open/floor/plasteel,
 /area/crew_quarters/bar/atrium)
 "bbF" = (
-/obj/structure/piano,
+/obj/structure/musician/piano,
 /obj/structure/window/reinforced{
 	dir = 8
 	},
@@ -62828,7 +62828,7 @@
 	},
 /area/maintenance/aft)
 "ciL" = (
-/obj/structure/piano,
+/obj/structure/musician/piano,
 /obj/effect/turf_decal/tile/neutral{
 	dir = 1
 	},

_maps/map_files/MetaStation/MetaStation.dmm

@@ -79574,7 +79574,7 @@
 /turf/closed/wall,
 /area/crew_quarters/bar)
 "dhU" = (
-/obj/structure/piano,
+/obj/structure/musician/piano,
 /obj/structure/window/reinforced{
 	dir = 8
 	},

_maps/map_files/OmegaStation/OmegaStation.dmm

@@ -11768,7 +11768,7 @@
 /turf/open/floor/plasteel/dark,
 /area/crew_quarters/theatre)
 "atY" = (
-/obj/structure/piano{
+/obj/structure/musician/piano{
 	icon_state = "piano"
 	},
 /obj/machinery/light{

_maps/map_files/PubbyStation/PubbyStation.dmm

@@ -43015,7 +43015,7 @@
 /area/maintenance/department/engine)
 "bUb" = (
 /obj/structure/grille/broken,
-/obj/structure/piano,
+/obj/structure/musician/piano,
 /turf/open/floor/plating,
 /area/maintenance/department/engine)
 "bUc" = (
@@ -58271,7 +58271,7 @@
 /turf/open/floor/plating,
 /area/chapel/office)
 "plA" = (
-/obj/structure/piano,
+/obj/structure/musician/piano,
 /turf/open/floor/plasteel/dark,
 /area/maintenance/department/crew_quarters/dorms)
 "pmB" = (

_maps/map_files/generic/CentCom.dmm

@@ -14420,7 +14420,7 @@
 /obj/machinery/light{
 	dir = 8
 	},
-/obj/structure/piano,
+/obj/structure/musician/piano,
 /turf/open/indestructible/hotelwood,
 /area/centcom/holding)
 "Hk" = (