I like the idea a lot!
My suggestion is take examples of decent mixes to work from like country and pop. And then focus on mastering versus mixing.
- Basic starting points
- What's typically problematic areas - or - what's the typical mistakes / oversights that elude us
- Is there low hanging fruit
- Standard mastering goals from a professional viewpoint
- Loudness vs quality vs loudness
- Secret sauce tips (bring on the magic)
Thanks!!