Wrinkles, there is a folk-tab site for mandoline http://www.mandolincafe.com/tabarc.html which is great for learning tunes and easy to transpose to other instruments. There's a penny whistle site somewhere too, but I can not find the addy at the monent.

I'd welcome some tabs for DAGDAD or DADF#AD, or indeed a site to find the like on. There isn't anywhere near enough of those tabs on the web, or bouzouki tab either, and no sites specifically for them. If I saw some here I might post a few myself.

As for legal problems, well posting to the Cat is giving tacit permission for others to use your arrangement ain't it!