Thanks Mike, that's helped me see where I need to focus my attention. I was looking at direct webcam recording, but was going to add that later. But given you

Thanks Mike, that's helped me see where I need to focus my attention. I was looking at direct webcam recording, but was going to add that later. But given your comments I think that is a must now, to enable quick and seamless video comments and feedback. Regarding music teachers paying, I mentioned in the other thread to Matt that I may be thinking more towards making it free for teachers, charging students per course, and taking a percentage. Re mockups, I am creating html mocks, but I'll look at the quick prototyping mockups so I can pitch to various music schools. Thanks for the advice, you are a true gent!