6517

musical notation

Do we actually have anything resembling a decent graphical music notation editor? Specifically, I'm looking for an application with the following features:

It should not hog my CPU, and if it creates some Lilypond output, that had better be syntactically correct (so, not rosegarden4)
It should not be horribly outdated (so, not rosegarden2.1)
It should not dump core when opening anything else than its native format (so, not denemo)
It should give me a path to its native format from the .mid file I have here (so, not noteedit)
It should have the ability to display notes, instead of just being a sequencer (so, not brahms)
And, last but not least: it should allow me to convert my .mid file into a conductor's score (which actually rules them all out, unless I didn't look too careful) so that I can edit it.That would be nice.

Yes, I know about lilypond. It works, but it's not really ideal to do some music editing in. I'm almost considering going back to Finale. It's horribly non-free (which is why I won't do it), but at least it works. Any better suggestions?