Is it possible for the same sales line to be allocated across a regular Artist's Period, and a Mechanical Period?
Yes, the same sales line can be included and reported in both Mechanical Periods and Ordinary Royalty Periods. This is because Mechanical Periods are processed only against Mechanical Contracts, disregarding 'normal' Contracts, and the reverse is true for ordinary Royalty Periods.
For more information on Royalty and Mechanical Periods please refer to the below Articles: