diff --git a/scripts/safe_build.py b/scripts/safe_build.py
index fce879f..1bf6a07 100644
--- a/scripts/safe_build.py
+++ b/scripts/safe_build.py
@@ -52,19 +52,42 @@
DIST = Path(__file__).parent.parent / "dist"
SONGS_URL = "https://www.dead.net/songs"
-# First annotation anchor: marks where the essay begins. Lyrics
-# live before it; everything from it onward is annotation we keep.
-SEAM_RE = re.compile(r" in the title heading at the very top (scarlet.html,
+# stephen.html), so the first on the page is not the seam.
+#
+# Two forms anchor a song page. The usual one is the "words/music by ..."
+# authorship line. But a handful of pages spell the authorship differently --
+# with a colon ("Words: Hunter; music: Garcia", e.g. libe/eter/onlytime/way2) or
+# crediting the band as a whole ("By the Grateful Dead", e.g. ydha) -- which the
+# authorship pattern misses. Those all still carry the publisher's licensed-lyric
+# signature, "Copyright Ice Nine Publishing; used by permission", which sits just
+# above the lyric block exactly as the authorship line does. It is the definitive
+# marker of reproduced GD lyrics: essays that merely quote permission say "Used
+# with permission" without naming Ice Nine (silber/miller/stephen/tribute), and
+# pages whose blockquote is an annotation rather than licensed lyrics (operator's
+# OED entry, slip's reader email) have no permission line at all. So we accept it
+# as a fallback credit anchor. On the 118 "words by" pages the authorship line
+# still matches first, leaving their output byte-for-byte unchanged.
CREDIT_RE = re.compile(
- r"(used by permission|words?\s+(?:and\s+music\s+)?by|lyrics?\s+by|music\s+by)",
+ r"words?\s+(?:and\s+music\s+)?by|lyrics?\s+by|music\s+by"
+ r"|copyright\s+ice\s+nine",
re.I,
)
+# The annotation seam: where commentary begins. A real section header is an
+# ADJACENT to an