ROHM melody sound source IC allows creation of a wide variety of ring tones through high audio quality, simultaneous playback of up to 64 polyphonic tones among 128 MIDI tones, 47 drums and 32 effect sounds. This IC is also not limited to ring tone functions; it is also applicable to "voice ringtones," "karaoke," "role-playing games," and various other functions that create enjoyable mobile telephones.