I find it easier to track down lyrics in Irish if the fadas are left out.

I suppose it depends on what we're using the lyric cache for; is this supposed to be a useful way for singers to find the words of songs, or a definitive store of the words of songs? If it's the former, we don't need fadas, because the singers are going to know where they go anyway; if it's the latter, then perhaps each song should be stored in a non-fada version, with a *link* to a fada-compliant version?