use verified five-track orchestral example

.gitattributes

@@ -41,3 +41,4 @@ examples/double-tracked-pop-rock.mp3 filter=lfs diff=lfs merge=lfs -text
 examples/livery-stable-blues-jazz-band.mp3 filter=lfs diff=lfs merge=lfs -text
 examples/bach-brandenburg-no2-ensemble.mp3 filter=lfs diff=lfs merge=lfs -text
 examples/harry-mitchell-jazz-quartet.mp3 filter=lfs diff=lfs merge=lfs -text
+examples/mozart-magic-flute-overture.mp3 filter=lfs diff=lfs merge=lfs -text

README.md

@@ -16,7 +16,7 @@ A custom ZeroGPU interface for [MuScriptor](https://github.com/muscriptor/muscri
 
 The app runs the 307M-parameter medium checkpoint, streams transcription progress after each 5-second audio window, renders an interactive color-coded piano roll, and exports both the full arrangement and isolated instrument MIDI files.
 
-Three one-click real-music examples are included: Bach's *Brandenburg Concerto No. 2* with chamber orchestra, a live modern performance by the Harry Mitchell Quartet, and a double-tracked pop-rock guitar performance. Each example uses verified instrument guidance selected from live quality tests. Their Creative Commons provenance is documented in [`examples/README.md`](examples/README.md). Example results are cached lazily after first use so startup never consumes ZeroGPU quota.
+Three one-click real-music examples are included: Mozart's *Magic Flute* overture with symphony orchestra, a live modern performance by the Harry Mitchell Quartet, and a double-tracked pop-rock guitar performance. Each example uses verified instrument guidance selected from live quality tests. Their Creative Commons provenance is documented in [`examples/README.md`](examples/README.md). Example results are cached lazily after first use so startup never consumes ZeroGPU quota.
 
 The checkpoint is gated under CC BY-NC 4.0. This Space requires an `HF_TOKEN` secret whose owner has accepted access to [`MuScriptor/muscriptor-medium`](https://huggingface.co/MuScriptor/muscriptor-medium).
 

app.py

@@ -604,7 +604,7 @@ EXAMPLES_HEADING = """
   <div>
     <span class="examples-kicker">Try a session</span>
     <h2>Start with an example</h2>
-    <p>Real performances spanning chamber orchestra, modern jazz and layered pop-rock.</p>
+    <p>Real performances spanning symphony orchestra, modern jazz and layered pop-rock.</p>
   </div>
   <span class="examples-hint">One click · 10–14 seconds</span>
 </div>
@@ -612,8 +612,8 @@ EXAMPLES_HEADING = """
 
 EXAMPLE_ROWS = [
     [
-        str(EXAMPLE_ROOT / "bach-brandenburg-no2-ensemble.mp3"),
-        ["trumpet", "flutes", "oboe", "string_ensemble"],
+        str(EXAMPLE_ROOT / "mozart-magic-flute-overture.mp3"),
+        ["string_ensemble", "flutes", "oboe", "clarinet", "bassoon"],
         False,
         1.0,
         1,
@@ -640,7 +640,7 @@ EXAMPLE_ROWS = [
 ]
 
 EXAMPLE_LABELS = [
-    "Bach — Brandenburg No. 2 · chamber orchestra · 12s",
+    "Mozart — Magic Flute Overture · orchestra · 12s",
     "Harry Mitchell Quartet · live jazz · 14s",
     "Layered Pop-Rock · real guitars & bass · 10s",
 ]

examples/README.md

@@ -2,13 +2,13 @@
 
 These examples are excerpts from genuine performances hosted by Wikimedia Commons. Each source, recording license, excerpt range, and modification is documented below. The clips were shortened, given brief edge fades, loudness-normalized where needed, and transcoded to compact 44.1 kHz MP3 files for this Space.
 
-## Bach — Brandenburg Concerto No. 2
+## Mozart — The Magic Flute Overture
 
-- File: `bach-brandenburg-no2-ensemble.mp3`
-- Recording: J. S. Bach, *Brandenburg Concerto No. 2 in F major*, first movement; Vince DiMartino with the Lexington Bach Choir Orchestra. The excerpt features trumpet, recorder/flute, oboe, violin, and ensemble strings.
-- Source: [Brandenburg Concerto No. 2 — Wikimedia Commons](https://commons.wikimedia.org/wiki/File:IMSLP83563_-_Brandenburg_Concerto_No.2_in_F_major,_BWV_1047_(Bach,_Johann_Sebastian)_-_1._(Allegro).ogg)
-- Rights: [Creative Commons Attribution 3.0 Unported](https://creativecommons.org/licenses/by/3.0/).
-- Modification: excerpt `00:04–00:16`, shortened to 12 seconds, loudness-normalized, faded at the cut boundaries, and transcoded to MP3.
+- File: `mozart-magic-flute-overture.mp3`
+- Recording: W. A. Mozart, overture to *The Magic Flute*, performed by the Musopen Symphony Orchestra. The selected fast passage has clearly separated ensemble strings and paired woodwinds.
+- Source: [Mozart — Magic Flute Overture — Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Mozart_-_Magic_Flute_Overture.ogg)
+- Rights: [CC0 1.0 Universal Public Domain Dedication](https://creativecommons.org/publicdomain/zero/1.0/).
+- Modification: excerpt `01:35–01:47`, shortened to 12 seconds, loudness-normalized, faded at the cut boundaries, and transcoded to MP3.
 
 ## Harry Mitchell Quartet
 

examples/{bach-brandenburg-no2-ensemble.mp3 → mozart-magic-flute-overture.mp3}

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
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-size 193141
+oid sha256:48ab439d426de06556d70a0423428ee1ccf15250a46e36635c26cc91c3513c24
+size 169004