Mobile Music Polyphonic - Version 1.5 Mobile Music Polyphonic is a polyphonic ringtone composition and converting software. Convert mp3, wave and midi to mobile phone ringtone. Write own music in Mobile Music Polyphonic and save to polyphonic ringtone format file. Export standard MIDI, SP midi and mmf format file. Convert mid to mmf, mmf to mid, standard midi to sp midi, wave to mmf, mp3 to mmf and mp3 to wave file.