As you're probably well aware, the largest repository of ABC music has been giving a 404 error for quite a long time. This makes it a bit inconvenient to share transcriptions for playing in-game.
So I (at certain individuals' request) put together a shiny new repository. LOTRO Tunes aims to fill the gap left by The Fat Lute until it's possible return, and then serve as an alternative. (Something about not putting all your eggs in one basket, etc..)
Obviously we don't have the expansive index of the Lute, but you can help by uploading transcriptions you want to share, and things should fill out.
LOTRO Tunes can be found at http://lotrotunes.clickmadly.com, or you can click the big banner on ClickMadly.com if you're lazy.