AUTOMATIC KEY ADJUSTING APPARATUS AND METHOD, AND A RECORDING MEDIUM

摘要

An automatic key adjusting apparatus is provided, which determines keys on an input melody in real time and adjusts the determined keys in non real time to obtain accurate keys, thereby enhancing accuracy of placement of chords. The automatic key adjusting apparatus is provided with a keyboard for playing a melody of a musical piece. CPU judges keys on the melody in real time based on a history of pitches of the played melody of the musical piece, and adjusts the result of the key judgment in non real time after the melody of the musical piece is played.

主权项

1. An automatic key adjusting apparatus, comprising:
a performance input unit for playing and sequentially inputting a melody of a musical piece; a real-time key judging unit for judging a key of the melody of the musical piece in real time based on a history of pitches of the melody of the musical piece sequentially input by the performance input unit; and a non real-time key modifying unit for modifying the key decided by the real-time key judging unit in non real-time after the melody of the musical piece is played by the performance input unit.