diff --git a/AGENTS.md b/AGENTS.md
index b6e2c04..6eaec0a 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -172,7 +172,7 @@ rm -f /tmp/rate_* 2>/dev/null                          # clear rate limiting fir
 php tests.php
 ```
 
-- Expected: **183/183 tests passed (100%)**.
+- Expected: **185/185 tests passed (100%)**.
 - Covers: auth (login, bad credentials, missing/invalid token), scores CRUD,
   create-score-with-pieces, files tree, path traversal, rate limiting, upload
   validation, INI injection, security headers.
@@ -346,7 +346,7 @@ joined by `+` (e.g. `contrebasse-sib-clefa-1+baryton-sib-clefa-1`). See `NAMING.
 - [ ] CORS origins restricted to the real domains (no wildcard fallback).
 - [ ] HTTPS enforced in production.
 - [ ] Rate limiting active (clear `/tmp/rate_*` only in tests, never in prod).
-- [ ] `php tests.php` passes 183/183.
+- [ ] `php tests.php` passes 185/185.
 - [ ] `npm audit` reviewed.
 - [ ] No secrets in code or git history.
 
diff --git a/NAMING.md b/NAMING.md
index 07eab27..43b2860 100644
--- a/NAMING.md
+++ b/NAMING.md
@@ -69,6 +69,23 @@ on ajoute un ou plusieurs instruments, chacun avec **tonalité / clé / partie**
 nom est alors construit automatiquement, relié par `+`
 (ex. `contrebasse-sib-clefa-1+baryton-sib-clefa-1.pdf`).
 
+### Percussions (`per`)
+
+Comme `sup`/`par`, le dossier `per/` regroupe plusieurs instruments : le **nom du
+fichier** précise le(s) instrument(s) de percussion, reliés par `+` lorsqu'ils
+partagent la même partition. Noms reconnus : `batterie`, `glockenspiel`,
+`xylophone`, `vibraphone`, `timbales`, `grosse_caisse`, `caisse_claire`,
+`cymbale`, `triangle`, `tambour`, `tam_tam`, `tom`, `gong`, `bongos`, `maracas`,
+`tambourine`, `woodblock`, `claves`.
+
+Exemples : `batterie-1.pdf`, `glockenspiel-1+xylophone-1.pdf`,
+`timbales-1+basse-1+batterie-1+triangle-1.pdf`,
+`percussion-1+gong-1+cymbalе-1+triangle-1.pdf`.
+
+`percussion` (générique) ne s'utilise que si la partition couvre **tout le
+pupitre**. Éviter les noms génériques type `percussion_1`, `percussion_2`, … qui
+ne disent pas quel instrument joue.
+
 ### Tonalités
 
 `sib` (Si♭), `mib` (Mi♭), `fa` (Fa), `ut` (Do — **`do` s'écrit `ut` dans les
diff --git a/README.md b/README.md
index 7408d34..ff5feb0 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ Détail manuel :
 ```bash
 cd api
 rm -f /tmp/rate_* 2>/dev/null
-php tests.php    # attendu : 183/183
+php tests.php    # attendu : 185/185
 ```
 
 Frontend (serveurs API + dev lancés) :
diff --git a/api/lib/ScoreScanner.php b/api/lib/ScoreScanner.php
index 97d34da..df03050 100644
--- a/api/lib/ScoreScanner.php
+++ b/api/lib/ScoreScanner.php
@@ -680,7 +680,7 @@ class ScoreScanner {
         
         $instName = $instrumentNames[$instrument] ?? $instrument;
         
-        if (in_array($instrument, ['sup', 'par'], true) && $combined !== null && trim($combined) !== '') {
+        if (in_array($instrument, ['sup', 'par', 'per'], true) && $combined !== null && trim($combined) !== '') {
             // Combined/superposed parts keep their real instrument names (e.g. "contrebasse-1+clarinette-1")
             $combined = strtolower(trim($combined));
             if (!$this->isValidSegment($combined, '/^[a-z0-9_+.-]+$/')) {
diff --git a/api/tests.php b/api/tests.php
index 0a22075..1fa8417 100644
--- a/api/tests.php
+++ b/api/tests.php
@@ -693,6 +693,17 @@ class APITest {
         $this->test('Upload sup combined returns 200', $supUp['code'] === 200);
         $this->test('Upload sup combined filename', str_contains($supUp['body']['path'] ?? '', 'contrebasse-1+clarinette-1.pdf'));
 
+        // Percussion parts are named after the real instrument(s)
+        $perUp = $this->multipartRequest("admin/scores/$scoreId/upload", [
+            ['name' => 'file', 'file' => $tmpPdf],
+            ['name' => 'piece', 'data' => '1'],
+            ['name' => 'instrument', 'data' => 'per'],
+            ['name' => 'version', 'data' => '1'],
+            ['name' => 'combined', 'data' => 'glockenspiel-1+xylophone-1'],
+        ]);
+        $this->test('Upload per combined returns 200', $perUp['code'] === 200);
+        $this->test('Upload per combined filename', str_contains($perUp['body']['path'] ?? '', 'glockenspiel-1+xylophone-1.pdf'));
+
         // Instruments (list + filter)
         $instr = $this->request('GET', "scores/$scoreId/instruments");
         $this->test('Instruments returns 200', $instr['code'] === 200);
diff --git a/partitions/src/routes/admin/+page.svelte b/partitions/src/routes/admin/+page.svelte
index a73a2be..7c040c4 100644
--- a/partitions/src/routes/admin/+page.svelte
+++ b/partitions/src/routes/admin/+page.svelte
@@ -203,9 +203,17 @@
 							</td>
 							<td class="px-3 py-4 text-sm text-gray-500">{score.compositor || '-'}</td>
 							<td class="whitespace-nowrap px-3 py-4 text-right text-sm">
-								<div class="flex justify-end gap-2">
-									<a href="/admin/{score.id}" class="btn btn-ghost px-2 py-1">
-										Voir
+								<div class="flex justify-end gap-1">
+									<a
+										href="/admin/{score.id}"
+										class="rounded-full p-1.5 text-ohmj-primary hover:bg-ohmj-light"
+										title="Voir la partition"
+										aria-label="Voir la partition"
+									>
+										<svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+											<path stroke-linecap="round" stroke-linejoin="round" d="M2.036 12.322a1.012 1.012 0 0 1 0-.639C3.423 7.51 7.36 4.5 12 4.5c4.638 0 8.573 3.007 9.963 7.178.07.207.07.431 0 .639C20.577 16.49 16.64 19.5 12 19.5c-4.638 0-8.573-3.007-9.963-7.178Z" />
+											<path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 1 1-6 0 3 3 0 0 1 6 0Z" />
+										</svg>
 									</a>
 									<button
 										type="button"
diff --git a/partitions/src/routes/admin/[id]/+page.svelte b/partitions/src/routes/admin/[id]/+page.svelte
index 0159006..c11010d 100644
--- a/partitions/src/routes/admin/[id]/+page.svelte
+++ b/partitions/src/routes/admin/[id]/+page.svelte
@@ -51,15 +51,30 @@
 	let combinedParts = $state<CombinedPart[]>([
 		{ instrument: '', key: '', clef: '', part: '1' }
 	]);
+
+	// Percussions (`per`): one or more instruments sharing the part
+	type PercussionPart = { name: string; part: string };
+	const PERCUSSIONS = [
+		'batterie', 'glockenspiel', 'xylophone', 'vibraphone', 'timbales', 'grosse_caisse',
+		'caisse_claire', 'cymbale', 'triangle', 'tambour', 'tam_tam', 'tom', 'gong',
+		'bongos', 'maracas', 'tambourine', 'woodblock', 'claves', 'percussion'
+	];
+	let percussionParts = $state<PercussionPart[]>([{ name: '', part: '1' }]);
+
 	let uploadCombined = $derived(
-		combinedParts
-			.filter((p) => p.instrument)
-			.map((p) =>
-				[getInstrumentFile(p.instrument), p.key, p.clef, p.part]
-					.filter((v) => v !== '')
-					.join('-')
-			)
-			.join('+')
+		uploadInstrument === 'per'
+			? percussionParts
+					.filter((p) => p.name)
+					.map((p) => [p.name, p.part].filter((v) => v !== '').join('-'))
+					.join('+')
+			: combinedParts
+					.filter((p) => p.instrument)
+					.map((p) =>
+						[getInstrumentFile(p.instrument), p.key, p.clef, p.part]
+							.filter((v) => v !== '')
+							.join('-')
+					)
+					.join('+')
 	);
 	let uploadWatermarkPosition = $state<'left' | 'right'>('left');
 
@@ -148,8 +163,8 @@
 
 	function getExpectedFilename(): string {
 		if (!uploadInstrument) return '';
-		// sup/par: the file is named after the combined instruments (see NAMING.md)
-		if (uploadInstrument === 'sup' || uploadInstrument === 'par') {
+		// sup/par/per: the file is named after the real instrument(s) (see NAMING.md)
+		if (['sup', 'par', 'per'].includes(uploadInstrument)) {
 			const combined = uploadCombined.trim().toLowerCase();
 			return combined ? `${combined}.pdf` : '';
 		}
@@ -540,6 +555,54 @@
 					</div>
 				{/if}
 
+				{#if uploadInstrument === 'per'}
+					<div>
+						<span class="label">Percussions</span>
+						<div class="mt-1 space-y-2">
+							{#each percussionParts as p, i}
+								<div class="flex flex-wrap items-center gap-2">
+									<select bind:value={p.name} class="input w-48" aria-label="Percussion {i + 1}">
+										<option value="">Instrument…</option>
+										{#each PERCUSSIONS as perc}
+											<option value={perc}>{perc}</option>
+										{/each}
+									</select>
+									<input
+										bind:value={p.part}
+										class="input w-20"
+										placeholder="Partie"
+										aria-label="Partie percussion {i + 1}"
+									/>
+									{#if percussionParts.length > 1}
+										<button
+											type="button"
+											onclick={() => (percussionParts = percussionParts.filter((_, k) => k !== i))}
+											class="rounded-full p-1.5 text-red-500 hover:bg-red-50 hover:text-red-700"
+											title="Retirer"
+											aria-label="Retirer la percussion {i + 1}"
+										>
+											<svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+												<path stroke-linecap="round" stroke-linejoin="round" d="M6 18 18 6M6 6l12 12" />
+											</svg>
+										</button>
+									{/if}
+								</div>
+							{/each}
+						</div>
+						<button
+							type="button"
+							onclick={() => (percussionParts = [...percussionParts, { name: '', part: '1' }])}
+							class="btn btn-ghost mt-2 px-2 py-1"
+						>
+							+ Ajouter une percussion
+						</button>
+						<p class="mt-1 text-xs text-gray-400">
+							Instruments de percussion reliés par « + » si plusieurs jouent la même partition
+							(ex. <code>glockenspiel-1+xylophone-1</code>).
+						</p>
+					</div>
+				{/if}
+
 				<div>
 					<button
 						type="button"