in operating environment of mobile phones such as allowing distribution of arbitrary melodies with voices. On the other hand, Wave Table synthesizer can pronounce the voice built in ROM and arbitrary ADPCM/PCM voices from sequencer by the download of the melody with voices etc. . MA-3 has a built-in hardware sequencer that helps to realize complex play without heavily loading the host CPU. The device also has a built-in circuit for controlling vibrators and LEDs synchronizing with play of music.