OSS Music Composer Gaining Attention
An anonymous reader writes "Following in the footsteps of Psycle, VioLet Composer is a completely GPLed music composer for Windows that has slowly but surely been gaining attention. In an interview at Laptoprockers the author covers not only the program itself but the his reasoning behind choosing to open the source using the GPL."
I think you're looking for ProTools. It does pretty much what you say. It is, however, quite expensive and needs specialized hardware to be used to the full extent. Hence the Pro part of the name. I don't know if it natively works on a note by note basis, I think conceptually it's more of a software based multi-track recorder. It does, however, have plug-ins that allow for such thing as locking pitch/etc. You know, all the effects used on pop-divas to make them actually sound bearable.
I'll never make that mistake again, reading the experts' opinions. - Feynman