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/lord-of-the-dance.tex

@@ -0,0 +1,50 @@
+\begin{song}{
+  title = {Lord of the Dance},
+  lyrics = {Sydney Carter},
+  composer = {Adaptiert aus einer traditionellen Shaker Hymne},
+  libock = 192,
+}
+
+\begin{verse}
+I \chord{G}danced in the morning when the w \chord{e}orld was be \chord{G}gun, \\
+I d \chord{a}anced in the moon and the s \chord{D}tars and the sun, \\
+I c \chord{G}ame down from heaven and I d \chord{e}anced on the earth, \\
+At B \chord{a}ethleh \chord{D}em I h \chord{C}ad my b \chord{G}irth.
+\end{verse}
+
+\begin{verse}
+Ref.: D \chord{G}ance, dance, wher \chord{e}ever you may be, \\
+\chord{G}I am the Lord of the \chord{D}Dance, said he, \\
+and I'll l \chord{G}ead you \chord{e}all, wher \chord{G}ever you may be, \\
+And I'll \chord{D}lead you all in the D \chord{G}ance, s \chord{D}ai \chord{G}d he.
+\end{verse}
+
+\begin{verse}
+I danced for the scribe and the pharisee, \\
+But they would not dance and they wouldn't follow me. \\
+I danced for the fishermen, for James and John \\
+They came to me and the Dance went on.
+\end{verse}
+
+\begin{verse}
+I danced on the Sabbath when I cured the lame; \\
+The holy people said it was a shame. \\
+They whipped and they stripped and they hung me on high, \\
+And they left me there on a Cross to die.
+\end{verse}
+
+\begin{verse}
+I danced on a Friday when the sky turned black \\
+It's hard to dance with the devil on your back. \\
+They buried my body and they thought I'd gone, \\
+But I am the Dance, and I still go on.
+\end{verse}
+
+\begin{verse}
+They cut me down and I leapt up high; \\
+I am the life that'll never, never die; \\
+I'll live in you if you'll live in me - \\
+I am the Lord of the Dance, said he.
+\end{verse}
+
+\end{song}