This document provides a detailed timeline of key events in the music industry from the 1940s to the 1990s. It covers the transition from vinyl records to cassette tapes and CDs, the rise of digital music distribution through iTunes and the internet, and the history of music videos from their early promotional films in the 1960s to directors launching careers in the 1990s. Major innovations and companies that shaped the industry are mentioned such as the introduction of the LP record, cassette tapes, CDs, MIDI technology, and music streaming platforms like MP3.com. The music industry underwent major changes in distribution methods and faced challenges from new technologies like digital piracy and streaming.