Because perpetual motion can not happen
They found out that they (unfairly) were not being paid royalties for their "shared" work online. So, whenever their work was downloaded they weren't receiving any royalties.
There are five types of music royalties. These royalties include; Mechanical licenses and royalties, Performance rights and royalties, Synchronization rights and royalties, Print rights and royalties, and Foreign Royalties.
Perpetual motion.
it depends on what you use to build it
There is no answer to your question because a perpetual motion machine is impossible. If one could be built, its own motion would be considered work.
royalties, royalties, royalties... haha its that simple
Perpetual motion would only work in a perfect environment - perfect vacuum - zero friction, zero resistance. The best we can hope for is to minimize the input energy - increase efficiency...
what are periodic royalties
The first law might allow a perpetual energy machine where energy is extracted from the surroundings to power the machine, but the second law explains why such a perpetual motion machine won't actually be able to work.
パーペチュアル =Perpetual
Thursday For a perpetual calendar and how to work it see the link below.