diff --git a/.changeset/polite-cars-prove.md b/.changeset/polite-cars-prove.md
new file mode 100644
index 0000000..99b17c5
--- /dev/null
+++ b/.changeset/polite-cars-prove.md
@@ -0,0 +1,5 @@
+---
+"magnit-synth": patch
+---
+
+added export for keyboard start-offset map
diff --git a/index.ts b/index.ts
index 4205340..fbbdaaa 100644
--- a/index.ts
+++ b/index.ts
@@ -21,7 +21,7 @@ export namespace MagnitSynth
     /**
      * Number of Keyboard Keys mapped to starting register offset
      */
-    const Keyboard_LengthToStartOffsetMap = new Map<number, number>([
+    export const Keyboard_LengthToStartOffsetMap = new Map<number, number>([
         [88, -48],
         [61, -33],
         [49, -21],