The document discusses sampling in music and how it has become more prevalent. It notes that sampling is a cornerstone of genres like urban and electronic music over the last 30 years. Approximately 50% of recent US number one hits incorporated sampling. The document also discusses the legal issues around sampling, how the music industry can learn from how tech companies embrace and promote APIs to distribute content. It suggests record labels could similarly embrace fan mashups and release stems for remixes to promote new albums.