Mobile Music Polyphonic is a polyphonic ringtones composer and converter, which allows you convert midi, mp3, wave, mmf, avi, rmvb, rm, wma, wmv, mpeg to cellphone polyphonic ringtone format m4r(iPhone ringtone), mmf(smaf format), amr-nb, amr-wb. You also can compose your own ringtone for your phone. You can convert midi to mmf, midi to m4r, mp3 to m4r, mp3 to mmf, wave to mmf , midi to amr, also mp3 to AMR, amr to wave, amr to mp3, amr to wave, mp3 to wave and wave to mp3. Converts between mmf, mp3, wave, amr-nb and amr-wb format. Converts mp3/wave/amr/awb to mmf. Sp-midi is nokia ringtone format and more cellphone brands polyphonic ringtone format. Supports iPhone, Nokia, Sony Ericsson, Samsung, Siemens and more brand polyphonic ringtone mobile phones.