An absurd comparison. And probably the root of much of the confusion on this site.

There is a complete difference between painstakingly recording a concert piano to make a sample set (which has LONG been allowed as legal) and the wholesale THEFT of those recordings to make your OWN sample set. Simply put, it's OK to sample a piano. It is NOT OK to copy someone ELSE'S samples. Not without permission.

It boils down to the WORK (as James likes to call it). Making the samples directly from the piano is a long, hard, complicated and expensive process. Copying the data is NOT. It's as easy as breaking into someone's house and stealing their stuff! Make your OWN sample set of a piano, all is good. Steal MINE, and I'll sick the dogs on ya!

Do the work yourself, or PAY for it. Do neither, and you are stealing. Period.
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An arranger is just a tool. What matters is what you build with it..!