Created attachment 48636 [details] seq24-0.6.0.ebuild
Thanks, added to portage cvs. Please don't remove architectures from the KEYWORDS without notice when doing a version bump; if you suspect that the new version would break on certain architectures you can remove them and ask the archs to test it, otherwise you can leave these in place.
FYI there's pretty huge changes between seq24 0.5.x and 0.6.x - jack transport - changed from gtk1+ to gtk2+ AFAIK, JACK still has a few loose ends with some archs. I don't see the reason to de-facto push seq24 on an arch you haven't actually tested it on.