If the processing is being done on a per-track(s) basis what about processing time?
How long do I have to wait for them to be glued together?
If it is on an ad-hoc basis the normal internet server would fall over very quickly. It would take a pretty powerful computer to process.
Pretty powerful computers don't come cheap.
What if it crashes due to high demand, does the customer lose the tracks they selected? Did it cost them upfront, if so have they lost money as well as their time? If they didn't pay upfront will they try again?
For these reasons I am not going to invest
