Yes. If a note or 2 needs tuning in the Vox or an instrument, I’ll usually fix that quickly as I’m mixing at no charge. However, tuning an entire Vocal, or stacks of BGVs, Instruments, etc… is not a standard part of mixing. It’s best to have these done as they’re finished during tracking… BEFORE you get to the Mix stage. I can certainly provide that service, but it is not included in the “Mix” fee.