diff --git a/CHANGELOG.md b/CHANGELOG.md
index 09b8245..713140b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · versioned wi
 ## [Unreleased]
 
 ### Changed
+- **Rehearser library namespace migration.** SQLite persistence and the IndexedDB migration adapter now use a private
+  scope with explicit database compatibility exports and the existing library namespace.
 - **Reader namespace migration.** PDF/TXT document state, playback, search, synthesis, and library APIs now use a
   private implementation scope with explicit compatibility exports and a tested `window.TTVC.reader` surface.
 - **Audiobook parser compatibility boundary.** Speech-heuristic constants consumed by the scoped Audiobook core are now
diff --git a/VERSION b/VERSION
index 98a131b..5898e68 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.24.65
+1.24.66
diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index 8767bf0..968c130 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -55,6 +55,7 @@ Done incrementally as global-scope ordered files (no ES-module change needed) 
 - ✅ Rehearser core uses a private scope with explicit state, pagination, and cast-management compatibility exports.
 - ✅ Audiobook core uses a private scope with explicit reader-side state and handoff compatibility exports.
 - ✅ Reader uses a private scope with explicit document, playback, and search compatibility exports.
+- ✅ Rehearser library persistence uses a private scope with explicit SQLite/IndexedDB compatibility exports.
 - ✅ `static/css/resource-diagnostics.css` — isolated Performance/resource diagnostic panel styles.
 - ✅ `static/css/background-jobs.css` — isolated background-job history and retry-panel styles.
 - ✅ `static/css/voice-design.css` — isolated Voice Design form, samples, and preview-match styles.
diff --git a/static/index.html b/static/index.html
index 9435383..225434f 100644
--- a/static/index.html
+++ b/static/index.html
@@ -10,7 +10,7 @@
   <meta name="format-detection" content="telephone=no">
   <meta name="color-scheme" content="light dark">
   <meta name="theme-color" content="#2563EB">
-  <meta name="app-version" content="1.24.65">
+  <meta name="app-version" content="1.24.66">
   <link rel="manifest" href="/manifest.webmanifest">
   <link rel="icon" href="/static/icon.svg" type="image/svg+xml">
   <link rel="apple-touch-icon" href="/static/icon.svg">
@@ -27,12 +27,12 @@
 
   <!-- ── Core styles (local — no CDN dependency for first paint) ────────── -->
   <link rel="stylesheet" href="/static/vendor/mdi/materialdesignicons.min.css">
-  <link rel="stylesheet" href="/static/style.css?v=1.24.65">
-  <link rel="stylesheet" href="/static/css/resource-diagnostics.css?v=1.24.65">
-  <link rel="stylesheet" href="/static/css/background-jobs.css?v=1.24.65">
-  <link rel="stylesheet" href="/static/css/voice-design.css?v=1.24.65">
-  <link rel="stylesheet" href="/static/css/rehearser.css?v=1.24.65">
-  <link rel="stylesheet" href="/static/css/audiobook.css?v=1.24.65">
+  <link rel="stylesheet" href="/static/style.css?v=1.24.66">
+  <link rel="stylesheet" href="/static/css/resource-diagnostics.css?v=1.24.66">
+  <link rel="stylesheet" href="/static/css/background-jobs.css?v=1.24.66">
+  <link rel="stylesheet" href="/static/css/voice-design.css?v=1.24.66">
+  <link rel="stylesheet" href="/static/css/rehearser.css?v=1.24.66">
+  <link rel="stylesheet" href="/static/css/audiobook.css?v=1.24.66">
 
 
   <!-- ── Flag icons — non-blocking (loaded async, icons appear after JS) ── -->
@@ -397,7 +397,7 @@ window.toggleNavTree = function(treeId, chevronId) {
 </script>
 
 <!-- loader.js: fetches sections → loads JS modules → removes skeleton -->
-<script src="/static/loader.js?v=1.24.65"></script>
+<script src="/static/loader.js?v=1.24.66"></script>
 
 </body>
 </html>
diff --git a/static/js/rehearser-library.js b/static/js/rehearser-library.js
index ea81249..18eee5b 100644
--- a/static/js/rehearser-library.js
+++ b/static/js/rehearser-library.js
@@ -3,6 +3,8 @@
 // isolated from parsing, casting, and stage playback. Functions stay global
 // during the compatibility migration because audiobook.js/library.js call them.
 
+(function (root) {
+
 async function rehDbGetAll() {
   const r = await fetch('/api/rehearsals');
   if (!r.ok) throw new Error('rehDbGetAll failed: ' + r.status);
@@ -56,7 +58,8 @@ function _rehIdbGetAll() {
     if (r.ok) console.log(`[rehearser] migrated ${(await r.json()).imported} records from IndexedDB → SQLite`);
   } catch (e) { console.warn('[rehearser] migration skipped:', e); }
 })();
-window.rehDbGetById = rehDbGetById;
-window.TTVC = window.TTVC || {};
-window.TTVC.rehearser = window.TTVC.rehearser || {};
-window.TTVC.rehearser.library = { rehDbGetAll, rehDbGetById, rehDbPut, rehDbDelete };
+Object.assign(root, { rehDbGetAll, rehDbGetById, rehDbAdd, rehDbPut, rehDbDelete, _rehSanitize, _rehIdbGetAll });
+root.TTVC = root.TTVC || {};
+root.TTVC.rehearser = root.TTVC.rehearser || {};
+root.TTVC.rehearser.library = { rehDbGetAll, rehDbGetById, rehDbAdd, rehDbPut, rehDbDelete };
+})(window);