I got that kinda stuff too. In the earlier version of evil Lyrics though, I didn't have any problems with accents, but now that I upgraded, EL displays some weird stuff instead of the proper accents like in the words: Não, fé, só, violão.
It's sad that evilyrics is not "foreign languages friendly" lol. But I think that wasnt done on purpose anyways, I hope it'll be fixed!!! Or at least, the early mode with recognizable accent signs gets back on the next versions and upgrades.