Nice CD-i trivia bit found by CD-i member VWS. Level 8 of tetris CD-i features the same music track as what Philips POV used during the credits section of 'Lords of the Rising Sun'. This music is created by Jim Andron who contributed to various Philips POV titles, but is well known for his soundtrack of tetris CD-i, which is very high appreciated. Level 8 of Tetris CD-i features the same melody as when you click on 'End the Rebellion' in "Lords of the Rising Sun", which exists the game but of course shows the credits first. Lords of the Rising Sun was a game by Cinemaware and technically is older than tetris CD-i, but both CD-i versions were released in 1991 on CD-i. Technically, Tetris is the oldest one so that means Lords of the Rising Sun re-used a track that was presented first in Tetris CD-i. Still a nice detail about these games, both developed by Philips POV. We're confident more music has been re-used like this.
Tetris Level 8 on CD-i:
Credits of Lords of the Rising Sun on CD-i:
[Thanks, vws]