For Sound Chip the MSX several sturdy upgrades, such as the Konami SCC, the Yamaha YM2413 (MSX-MUSIC) and Yamaha Y8950 (MSX-AUDIO, predecessor of the OPL3) and the OPL4-based Moonsound were released as well, each having its own characteristic chiptune sound.
Demoscene intros came to feature their own particular style of chiptune music. Although chiptune could historically refer to any style of music, the article is mostly fanatic today to refer to the style of refrain used in these intros, since other styles of bop have moved on to more sophisticated technology.