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/whats-right-ye-jacobites.tex

@@ -0,0 +1,38 @@
+\begin{song}{
+  title = {WHat’s right (Ye Jacobites)},
+  lyrics = {Robert Burns (1759-1796), 1791},
+  composer = {schottisches Traditional},
+  bulibu = 200,
+  bulibull = 3,
+  cl = 60,
+  barde = 359,
+}
+
+\begin{verse}
+What’s r \chord{e}ight and what is wrong by the l \chord{G}aw, by the l \chord{D}aw? \\
+What’s r \chord{e}ight and what is wrong \chord{D}by the l \chord{e}aw? \\
+\chord{D}What’s \chord{G}right and what is wrong by s \chord{D}hort or by long? \\
+A we \chord{e}ak arm or a strong f \chord{D}or to d \chord{e}raw, for to d \chord{D}raw? \\
+A we \chord{e}ak arm or a strong f \chord{D}or to d \chord{e}raw. \\
+Ye J \chord{e}acobites by name lend an e \chord{G}ar, lend an \chord{D}ear. \\
+Ye \chord{e}Jacobites by name l \chord{D}end an e \chord{e}ar. \\
+\chord{D}Ye \chord{G} Jacobites by name, your f \chord{D}aults I will proclaim, \\
+Your d \chord{e}octrines I must blame you shall h \chord{G}ear, you shall h \chord{D}ear. \\
+Your d \chord{e}octrines I must blame y \chord{D}ou shall h \chord{e}ear.
+\end{verse}
+
+\begin{verse}
+What makes heroic strife, famed afare, famed afare. \\
+What makes heroic strife, famed afare. \\
+What makes heroic strife, to whet assassins knife \\
+or bound a parents life neith bloody war, bloody war.
+\end{verse}
+
+\begin{verse}
+Then leave your shemes alone in the state, in the state. Then \\
+leave your shemes alone in the state. \\
+Then leave your shemes alone and adore the rising sun and \\
+leave a man undone to his fate.
+\end{verse}
+
+\end{song}