Change web page layout. Put tune contents under 'tunes/<name>' or 'tunes-<instrument>/<name>'. That way they won't move if the tune gets moved between Bookes. For now I have not attempted to redirect old URLs.

This book is for tunes that are not part of the regular
Havoc session or dance repertoire.

Typically these tunes have either fallen out of popularity at sessions,
or are simply tunes that I like.