According to the Copyright Act, a Performing Rights Organization (PRO) is an association that licenses the public performance of nondramatic musical works on behalf of Copyright owners of such works, such as the American Society of Composers, Authors and Publishers (ASCAP), Broadcast Music, Inc. (BMI), and SESAC, Inc.

How Does A Music Synthesizer Work?
A music synthesizer makes sounds by using an electrical circuit as an oscillator to create and vary the frequency of sounds in order to produce different pitches.

