Take the markdown fences out of the example files

CHANGELOG.md

@@ -2,6 +2,26 @@
 
 Notable changes, newest first. Dates are ISO 8601.
 
+## Unreleased
+
+### The shipped examples were wrapped in markdown fences
+
+All eight files in `examples/` opened with ```` ```plainsong ```` and closed with
+```` ``` ````. They are `.song` files, not markdown. The parser ignores the
+fence, so nothing sounded wrong and nothing warned -- but these files are the
+first thing anyone reads to learn the notation, and one of the observed failure
+modes is an agent copying an example verbatim. It was copying a fence.
+
+Removing them changed no music, which is checked rather than asserted: the
+corpus fingerprint hashes the compiled arrangement, and it is unmoved at 6,321
+files.
+
+The three warnings `plainsong check examples` reports are all deliberate and
+stay: two are sections whose chords stop early on purpose (one of them an outro
+literally named "fading sonar"), and the third is `edge-3-dense-chords.song`,
+whose degenerate tokens are documented in `examples/edge-cases/BUGS.md` as
+testing that they degrade gracefully.
+
 ## 1.5.0 — 2026-08-24
 
 A minor rather than a patch: the CLI accepts flags it used to refuse, `--verbose`

examples/plainsong-1-creatures-of-interval.song

@@ -1,4 +1,3 @@
-```plainsong
 Key: Am
 Tempo: 75
 Meter: 4/4
@@ -22,4 +21,3 @@ Meter: 4/4
 [Outro]
 | VI . . . | VII . . . | i . . . | i . . . |
 | VI . . . | VII . . . | i . . . | i . . . |
-```

examples/plainsong-2-the-room-is-safe.song

@@ -1,4 +1,3 @@
-```plainsong
 Key: Em
 Tempo: 50
 Meter: 3/4
@@ -21,4 +20,3 @@ Meter: 3/4
 [Outro]
 | i . . | VII . . | VI . . | V . . |
 | i . . | i . . | i . . | i . . |
-```

examples/plainsong-3-hermes-blues.song

@@ -1,4 +1,3 @@
-```plainsong
 key: D minor
 tempo: 65
 meter: 4/4
@@ -35,4 +34,3 @@ meter: 4/4
 | 1 . 2 . | 3 . 2 . | 1 . 7 . | 6 . . . |
 | 5 . 4 . | 3 . 2 . | 1 . . . | 1 . . . |
 | i . . . | i . . . | i . . . | i . . . |
-```

examples/plainsong-4-closing-time.song

@@ -1,4 +1,3 @@
-```plainsong
 Key: Bb
 Meter: 3/4
 Tempo: 60
@@ -24,4 +23,3 @@ IV | 4 . . | 6 . . | 1 . . | 5 . . |
 I | 1 . . | 3 . . | 5 . . | 1 . . |
 V | 5 . 4 | 3 . 2 | 1 . . | . . . |
 I | 1 . . | . . . | . . . | . . . |
-```

examples/plainsong-5-deck-work.song

@@ -1,4 +1,3 @@
-```plainsong
 Key: A mixolydian
 Tempo: 120
 Meter: 4/4
@@ -17,4 +16,3 @@ Meter: 4/4
 [Bridge - 2 bars]
 | II 2 . 3 | IV 4 . 5 | V 6 . 7 | I . . . |
 | I . . . | I . . . |
-```

examples/plainsong-6-spacing-melody.song

@@ -1,4 +1,3 @@
-```plainsong
 key: C major
 tempo: 90
 time: 4/4
@@ -16,4 +15,3 @@ A4~~~ G4~~~ F4~~~ E4~~~
 D4~~~ C4~~~ r~~~~ r~~~~
 
 @wesley: piano | both | vel: 65
-```

examples/plainsong-7-spacing-chords.song

@@ -1,4 +1,3 @@
-```plainsong
 key: A minor
 tempo: 75
 time: 4/4
@@ -21,4 +20,3 @@ A4~~~~  r~~~~
 
 @wesley: piano | both | vel: 70
 @hermes: strings | pad | vel: 55
-```

examples/plainsong-8-spacing-dashes.song

@@ -1,4 +1,3 @@
-```plainsong
 key: D dorian
 tempo: 110
 time: 4/4
@@ -23,4 +22,3 @@ r~~~~ D4----
 
 @flash: guitar | fingerpicking | vel: 75
 @hermes: bass | walking | vel: 80
-```