From c0a0ccd4a5eb92cfbbad802bc678790197b87863 Mon Sep 17 00:00:00 2001
From: Jage9 <jj@bestmidi.com>
Date: Mon, 23 Feb 2026 01:24:13 -0500
Subject: [PATCH] Use Yama no Ongakuka melody for piano demo

---
 client/public/version.js |  2 +-
 client/src/main.ts       | 59 ++++++++++++++++++++++++++++------------
 2 files changed, 42 insertions(+), 19 deletions(-)

diff --git a/client/public/version.js b/client/public/version.js
index d1514d6..78693e1 100644
--- a/client/public/version.js
+++ b/client/public/version.js
@@ -1,5 +1,5 @@
 // Maintainer-controlled web client version.
 // Format: YYYY.MM.DD Rn (example: 2026.02.20 R2)
-window.CHGRID_WEB_VERSION = "2026.02.23 R213";
+window.CHGRID_WEB_VERSION = "2026.02.23 R214";
 // Optional display timezone for timestamps. Falls back to America/Detroit if unset/invalid.
 window.CHGRID_TIME_ZONE = "America/Detroit";
diff --git a/client/src/main.ts b/client/src/main.ts
index 6fc8fe7..5524e10 100644
--- a/client/src/main.ts
+++ b/client/src/main.ts
@@ -113,24 +113,47 @@ const PIANO_SHARP_KEY_MIDI_BY_CODE: Record<string, number> = {
   BracketRight: 78,
 };
 const PIANO_DEMO_STEPS_F_MAJOR: Array<{ midi: number; durationMs: number; gapMs: number }> = [
-  { midi: 65, durationMs: 220, gapMs: 40 }, // F4
-  { midi: 69, durationMs: 220, gapMs: 40 }, // A4
-  { midi: 72, durationMs: 280, gapMs: 60 }, // C5
-  { midi: 74, durationMs: 220, gapMs: 40 }, // D5
-  { midi: 72, durationMs: 220, gapMs: 40 }, // C5
-  { midi: 69, durationMs: 260, gapMs: 60 }, // A4
-  { midi: 70, durationMs: 220, gapMs: 40 }, // Bb4
-  { midi: 69, durationMs: 220, gapMs: 40 }, // A4
-  { midi: 67, durationMs: 260, gapMs: 60 }, // G4
-  { midi: 65, durationMs: 360, gapMs: 90 }, // F4
-  { midi: 67, durationMs: 220, gapMs: 40 }, // G4
-  { midi: 69, durationMs: 220, gapMs: 40 }, // A4
-  { midi: 70, durationMs: 220, gapMs: 40 }, // Bb4
-  { midi: 72, durationMs: 280, gapMs: 60 }, // C5
-  { midi: 70, durationMs: 220, gapMs: 40 }, // Bb4
-  { midi: 69, durationMs: 220, gapMs: 40 }, // A4
-  { midi: 67, durationMs: 260, gapMs: 60 }, // G4
-  { midi: 65, durationMs: 420, gapMs: 120 }, // F4
+  // "Yama no Ongakuka" / "Das Lied vom Musikanten" core melody in F major.
+  { midi: 65, durationMs: 240, gapMs: 40 }, // F4
+  { midi: 69, durationMs: 240, gapMs: 40 }, // A4
+  { midi: 72, durationMs: 240, gapMs: 60 }, // C5
+  { midi: 72, durationMs: 240, gapMs: 40 }, // C5
+  { midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
+  { midi: 69, durationMs: 240, gapMs: 60 }, // A4
+  { midi: 67, durationMs: 240, gapMs: 40 }, // G4
+  { midi: 69, durationMs: 240, gapMs: 40 }, // A4
+  { midi: 65, durationMs: 240, gapMs: 60 }, // F4
+  { midi: 65, durationMs: 480, gapMs: 120 }, // F4 (held)
+  { midi: 69, durationMs: 240, gapMs: 40 }, // A4
+  { midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
+  { midi: 72, durationMs: 240, gapMs: 60 }, // C5
+  { midi: 72, durationMs: 240, gapMs: 40 }, // C5
+  { midi: 74, durationMs: 240, gapMs: 40 }, // D5
+  { midi: 72, durationMs: 240, gapMs: 60 }, // C5
+  { midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
+  { midi: 69, durationMs: 240, gapMs: 40 }, // A4
+  { midi: 67, durationMs: 240, gapMs: 60 }, // G4
+  { midi: 65, durationMs: 480, gapMs: 120 }, // F4 (held)
+  { midi: 72, durationMs: 240, gapMs: 40 }, // C5
+  { midi: 72, durationMs: 240, gapMs: 40 }, // C5
+  { midi: 74, durationMs: 240, gapMs: 60 }, // D5
+  { midi: 65, durationMs: 240, gapMs: 40 }, // F4
+  { midi: 65, durationMs: 240, gapMs: 40 }, // F4
+  { midi: 65, durationMs: 240, gapMs: 60 }, // F4
+  { midi: 67, durationMs: 240, gapMs: 40 }, // G4
+  { midi: 65, durationMs: 240, gapMs: 40 }, // F4
+  { midi: 64, durationMs: 240, gapMs: 60 }, // E4
+  { midi: 65, durationMs: 480, gapMs: 120 }, // F4 (held)
+  { midi: 69, durationMs: 240, gapMs: 40 }, // A4
+  { midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
+  { midi: 72, durationMs: 240, gapMs: 60 }, // C5
+  { midi: 72, durationMs: 240, gapMs: 40 }, // C5
+  { midi: 74, durationMs: 240, gapMs: 40 }, // D5
+  { midi: 72, durationMs: 240, gapMs: 60 }, // C5
+  { midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
+  { midi: 69, durationMs: 240, gapMs: 40 }, // A4
+  { midi: 67, durationMs: 240, gapMs: 60 }, // G4
+  { midi: 65, durationMs: 520, gapMs: 140 }, // F4 (held, phrase ending)
 ];
 
 declare global {