Music industry terms

• What is copyright?
• What is a production?
• What is a composition?
• What is music licensing?
• What is a blanket license?
• What is a PRO?
• What is a sample?
• What is music clearance?
• What is temp music?
• What is a sync license?
• What is a reference track?
• What is a master?
• What does "public domain" mean?
• What is music supervision?