You might have a look at MuseScore, which is a free music notation program. It also supports toggling between notation and concert pitch (in the menu under Notes | Concert Pitch).

I rather like the way Noteflight handles keying in music - it's a more mnemonic based system than most notation programs. It's web-based and has free accounts.

You might also have a look at Notion, a commercial program that comes with a pretty good sound library, and does a pretty good job with playback.

-- David Cuny
My virtual singer development blog

Vocal control, you say. Never heard of it. Is that some kind of ProTools thing?