Minor text cleanup in comments, configs, and tests

.dockerignore

@@ -1,4 +1,4 @@
-# Root-level .dockerignore — applied to the build context for the frontend
+# Root-level .dockerignore - applied to the build context for the frontend
 # (which uses the repo root as context). Keep this list aggressive so the
 # build context stays small.
 

.env.example

@@ -1,6 +1,6 @@
-# ─── Bach to Basics — environment configuration ─────────────────────────────
+# ─── Bach to Basics - environment configuration ─────────────────────────────
 # Copy this file to .env and customize for your deployment.
-# .env is gitignored — never commit secrets.
+# .env is gitignored - never commit secrets.
 
 # ── Authentication ───────────────────────────────────────────────────────────
 

.gitignore

@@ -26,7 +26,7 @@ __pycache__/
 *.key
 secrets.*
 
-# ── Audiveris (large binary — download separately per README) ────────────────
+# ── Audiveris (large binary - download separately per README) ────────────────
 backend/bin/*.jar
 
 # ── OS metadata ───────────────────────────────────────────────────────────────

NOTICE

@@ -14,45 +14,45 @@ frontend/public/soundfont/sonivox.sf3
     Used here as the AlphaTab playback soundfont.
 
 ────────────────────────────────────────────────────────────────────────────
-Frontend dependencies (selected — full list in frontend/package.json)
+Frontend dependencies (selected - full list in frontend/package.json)
 ────────────────────────────────────────────────────────────────────────────
 
-  AlphaTab                 — MPL-2.0            (sheet music renderer)
+  AlphaTab                 - MPL-2.0            (sheet music renderer)
-  PixiJS                   — MIT                (WebGL renderer)
+  PixiJS                   - MIT                (WebGL renderer)
-  Tone.js                  — MIT                (audio scheduling)
+  Tone.js                  - MIT                (audio scheduling)
-  smplr                    — MIT                (sample-based instruments)
+  smplr                    - MIT                (sample-based instruments)
-  WebMidi.js               — Apache-2.0         (MIDI input)
+  WebMidi.js               - Apache-2.0         (MIDI input)
-  React                    — MIT
+  React                    - MIT
-  Zustand                  — MIT
+  Zustand                  - MIT
-  Vite                     — MIT
+  Vite                     - MIT
-  Tailwind CSS             — MIT
+  Tailwind CSS             - MIT
 
 MPL-2.0 note: AlphaTab is consumed unmodified as an npm dependency. MPL-2.0
-is per-file copyleft — if you modify AlphaTab's own source files you must
+is per-file copyleft - if you modify AlphaTab's own source files you must
 share those changes under MPL-2.0, but the rest of this codebase remains
 under MIT.
 
 ────────────────────────────────────────────────────────────────────────────
-Backend dependencies (selected — full list in backend/requirements.txt)
+Backend dependencies (selected - full list in backend/requirements.txt)
 ────────────────────────────────────────────────────────────────────────────
 
-  music21                  — LGPL-3.0           (music theory + MusicXML)
+  music21                  - LGPL-3.0           (music theory + MusicXML)
-  FastAPI                  — MIT
+  FastAPI                  - MIT
-  defusedxml               — PSF-2.0
+  defusedxml               - PSF-2.0
-  pianoplayer              — MIT                (Parncutt fingering algorithm)
+  pianoplayer              - MIT                (Parncutt fingering algorithm)
-  yt-dlp                   — Unlicense          (YouTube audio extraction)
+  yt-dlp                   - Unlicense          (YouTube audio extraction)
-  pdf2image                — MIT
+  pdf2image                - MIT
-  Basic Pitch (optional)   — Apache-2.0         (audio → MIDI transcription)
+  Basic Pitch (optional)   - Apache-2.0         (audio → MIDI transcription)
 
 LGPL note (music21): used as a pure Python library import, unmodified.
 
 ────────────────────────────────────────────────────────────────────────────
-Optional external tools (NOT bundled — user installs separately)
+Optional external tools (NOT bundled - user installs separately)
 ────────────────────────────────────────────────────────────────────────────
 
-  Audiveris 5.x            — AGPL-3.0           (PDF → MusicXML OMR)
+  Audiveris 5.x            - AGPL-3.0           (PDF → MusicXML OMR)
 
 Audiveris is invoked as a subprocess if the user places audiveris.jar at
 backend/bin/. Because it's distributed separately by the user (and is
 optional), the AGPL obligations apply only to anyone redistributing the
-JAR or hosting Audiveris itself — not to this codebase.
+JAR or hosting Audiveris itself - not to this codebase.

frontend/src/__tests__/AccuracyTracker.test.ts

@@ -94,7 +94,7 @@ describe("AccuracyTracker", () => {
     bus.emit("note:on", note);
     bus.emit("input:note:on", { midi: 60, velocity: 80 }); // correct hit
     const countBefore = updates.length;
-    bus.emit("note:off", note); // already hit — should not emit again
+    bus.emit("note:off", note); // already hit - should not emit again
 
     // No new accuracy:update should have been emitted for the note:off
     expect(updates.length).toBe(countBefore);
@@ -247,7 +247,7 @@ describe("AccuracyTracker", () => {
     bus.emit("transport:seek", { seconds: 5 }); // clears pending
 
     const countBefore = updates.length;
-    bus.emit("note:off", note); // pending was cleared — should be a no-op
+    bus.emit("note:off", note); // pending was cleared - should be a no-op
 
     // No new accuracy:update should have fired
     expect(updates.length).toBe(countBefore);

frontend/src/__tests__/MidiClock.test.ts

@@ -116,7 +116,7 @@ describe("MidiClock", () => {
       mockTransport.seconds = 2;
       expect(clock.currentSeconds).toBe(5);
 
-      // Change multiplier — currentSeconds must remain 5
+      // Change multiplier - currentSeconds must remain 5
       clock.tempoMultiplier = 0.5;
       expect(clock.currentSeconds).toBeCloseTo(5);
     });

frontend/src/__tests__/colorUtils.test.ts

@@ -36,7 +36,7 @@ describe("lighten", () => {
   });
 
   it("handles zero channel values", () => {
-    // Red only — green and blue stay 0
+    // Red only - green and blue stay 0
     // Math.round(255 * 0.5) = Math.round(127.5) = 128 = 0x80
     expect(lighten(0xff0000, 0.5)).toBe(0x800000);
   });