Import 294 songs from Carmina Leonis PDF

Add import-songs.py script that extracts songs from the PDF text
and generates .tex files with leadsheets format. Adds song
properties for all reference books (BuLiBu, BuLiBuII, CL, SwA,
Barde, LiBock). Generates all-songs.tex with alphabetical inputs.

Note: Chord alignment is approximate from PDF extraction and
may need manual review for some songs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

songs/star-of-county-down.tex

@@ -0,0 +1,61 @@
+\begin{song}{
+  title = {Star of County Down},
+  lyrics = {Cathal McGarvey, eine von der deutschen Fassung abweichende Version (Text und Akkorde) ist hier abgedruckt.},
+  cl = 256,
+  barde = 224,
+  libock = 264,
+}
+
+\begin{verse}
+Near Ban \chord{e}bridge Town in the Cou \chord{G}nty Dow \chord{D}n \\
+one m \chord{G}orning la \chord{e}st \chord{D} July, \\
+Down a bo \chord{e}reen green came a sweet \chord{G} Colleen. \\
+And she sm \chord{G}iled as she pas \chord{C}sed me b \chord{D}y. \\
+Oh, she lo \chord{G}oked so sweet \\
+from her t \chord{a}wo white feet. \\
+To the sh \chord{G}een of her n \chord{e}ut-brown hai \chord{D}r. \\
+Such a co \chord{e}axing elf, I‘d to s \chord{G}hake mys \chord{D}elf. \\
+To make sur \chord{e}e I was sta \chord{C}nd \chord{D}ing the \chord{e}re.
+\end{verse}
+
+\begin{verse}
+/: From Ba \chord{G}ntry Bay up to Der \chord{a}ry Quay \\
+and from Gal \chord{G}way to Du \chord{e}blin tow \chord{D}n, \\
+No maid \chord{e} I've seen like the f \chord{G}air colle \chord{D}en, \\
+that I m \chord{e}et in the \chord{C}Co \chord{D}unty D \chord{e}own. :/
+\end{verse}
+
+\begin{verse}
+As she onward sped I shook my head \\
+And I gazed with a feeling quare, \\
+And I said‘, says I to a passer-by. \\
+Who’s the maid with the nut-brown hair?‘ \\
+Oh, he smiled at me, and with pride says he, \\
+That’s the gem of Ireland’s crown. \\
+She’s young Rosie McCann, from the banks of the Bann \\
+She’s the star of the County Down.‘
+\end{verse}
+
+\begin{verse}
+I’ve travelled a bit, but never was hit, \\
+Since my roving career began; \\
+But fair and square I surrendered there \\
+To the charm of young Rose McCann. \\
+With a heart to let and no tenant yet \\
+Did I meet within shawl or gown \\
+But in she went and I asked no rent \\
+From the star of the County Down.
+\end{verse}
+
+\begin{verse}
+At the harvest fair I’ll be surely there \\
+And I’ll dress in my Sunday clothes, \\
+And I’ll try sheep's eyes and deludhering lies \\
+On the heart of the nut-brown Rose. \\
+No pipe I’ll smoke, no horse I’ll yoke \\
+Though my plough with rust turns brown \\
+Till a smiling bride by my own fireside \\
+Sits the Star of the County Down.
+\end{verse}
+
+\end{song}