1 files changed, 21 insertions, 2 deletions
diff --git a/src/lib/sounds.ml b/src/lib/sounds.ml
index ec1ddf2..0ee9f5c 100644
--- a/src/lib/sounds.ml
+++ b/src/lib/sounds.ml
@@ -22,6 +22,7 @@ module type T = sig
   val k: t
   val f: t
   val s: unit -> t
+  val sz: unit -> t
   val ch: unit -> t
   val z: unit -> t
 
@@ -33,6 +34,12 @@ module type T = sig
   val is_voyel : t -> bool
   val is_nasal : t -> bool
 
+  type code =
+    | None
+    | SZ
+
+  val code : t -> code
+
 end
 
 module T = struct
@@ -40,12 +47,18 @@ module T = struct
     | None
     | Voyel
 
+  type code =
+    | None
+    | SZ
+
   type t =
-    { repr : string
+    { code : code
+    ; repr : string
     ; muted : bool
     ; kind : kind
     ; nasal : bool
     }
+
 end
 
 module Repr = struct
@@ -68,7 +81,10 @@ module S = struct
     { repr = "."
     ; muted = false
     ; kind = None
-    ; nasal = false }
+    ; nasal = false
+    ; code = None }
+
+  let code t = t.code
 
   let nasal t =
     match t.repr with
@@ -120,6 +136,9 @@ module S = struct
   let s () =
     { none with repr = "s" }
 
+  let sz () =
+    { (s()) with code = SZ }
+
   let ch () =
     { none with repr = "S" }