I want to do it as a PHP/MySQL project of my own for "fun" so is not a redundant idea considering we already have the http://www.pf-db.com website on the internet.
So, does anyone have anyh thoughts about this?
Development Stages
In terms of developing it, it will be done in small parts over time. So first, I shall simply make a database listing all their concerts. There would be a form to search/filter concerts by year for example. Perhaps as a second iteration, add city/venue info. Third iteration, add set lists. Then you could select a song and see how many times it had been played and in which countries and venues, for whatever use that would be!

Those are just some thoughts. Very informal.