Daisuke Inoue invents karaoke machine (1971)
In Kobe, Japan, musician Daisuke Inoue built a coin-operated machine that played backing tracks for singers. He lent it to bars instead of patenting the idea.
Karaoke spread rapidly through Japanese bars and clubs.
It became a global entertainment staple; Inoue never collected royalties.
Explains the karaoke format Live-K's private rooms and song catalog build on.
