"Indicate which tracks were recorded by you, and which tracks were generated by Band-in-a-Box or RealBand."
Again 'implied'.
I can easily comply by stating 'all tracks recorded by me'.
Still doesn't say generated tracks are required.
I like how they wrote it: it makes everybody think it is required, by implying, and thus declares it's intended purpose, but leaves a little leeway for users and discretion.