Yamaha Corporation

Masahiko Kobayashi

Kosei Terada

Hitoshi Makita

Hiroshi Adachi

Toru Makino

Tetsuya Maeda

Shinichi Takenaga

Keigo Kikuchi

In a music information database, music information where music pieces and impression words representing impressions of the music pieces and usable as search words when any of the music pieces is to be searched for is registered for a plurality of music pieces. Information collection section collects, from among various information being provided by information source sites, information usable as music-piece-related search words. Registration section registers the words usable as music-piece-related search words, collected by the information collection section, into the database in association with particular music pieces. In this way, it is possible to construct a music information database which permits a music information search therethrough using impression words representing impressions of a music piece, at low cost without taking much time and labor.

Database constructing apparatus and method

A keyboard system for an electronic musical instrument includes: a keyboard having a number of keys; a keyboard central processing unit (CPU) coupled to the keyboard; a switch connected to each key on the keyboard; a pull-up resistor serially connected to each switch; a unit for applying voltage to a serial circuit of each switch and each pull-up resistor; and a unit for parallel supplying a signal at an intersection point between each switch and each pull-up resistor to the CPU. The operation states of a plurality of keys can be independently detected by sequentially detecting the potential at the interconnection points.

Keyboard system for an electric musical instrument in which each key is

Growing community of inventors

Hamamatsu, Japan

Masahiko Kobayashi