Previously, the auto-accompaniment concept was not taken seriously by professional users, who saw it more the preserve of home hobbyists, and the market had been dominated by low-cost machines made by the likes of Casio and Yamaha.
Previously, the concept of auto-accompaniment was not considered a serious feature by professional musicians, who saw it as a hobbyist tool, and the market had been dominated by inexpensive instruments made by companies such as Casio and Yamaha.