Re: lilypond manual intro

[Karl Berry]

    opens the door to dead links.

That door is open no matter what, it seems to me.  It's not just people
clicking around your web site under your control that are affected.
Another Texinfo manual might have an xref to one of your nodes.  That
will become a dead link.

The best way I know to close the door is: when you change or remove a
node from the manual, leave an @anchor behind with the old name.  Then
links to that name, from wherever, will (have a chance to) keep working.

k