Weighing in on the Variaudio/Melodyne debate. I use both, and have for years, and find that on the whole Variaudio has less artifacts than Melodyne, but only when used subtly instead of drastic changes. My song production partner is on Pro Tools and only uses Melodyne, and he (like me) lament how on some vocals Melodyne messes with the high end, whereas Variaudio rarely does that (again, when used for a half or a whole step fix, mostly) – we often end up tuning/fixing vocals with Variaudio instead. The latest Variaudio is a joy to use for me (I’m also very experienced in Melodyne and enjoy that as far as actual use as well, but it’s not integrated with Cubase like Variaudio, obviously,), and if Cubase had it in-line instead of in a separate window it would be a major improvement to something that’s already great. Melodyne is great, too, in its own ways.
I personally do not want Steinberg to spend the time and effort to make Variaudio multitimbral, but that’s just my opinion because it’s something I rarely need to use. I understand that others have other needs.