Midi Ringtone Maahi Ve Kal Ho How Do I Make A Midi Ringtone On My Computer Work On Blackberry 7230?

How do i make a midi ringtone on my computer work on blackberry 7230? - midi ringtone maahi ve kal ho

Hello, my BlackBerry is solely responsible for polyphonic, and I read it is possible, MIDI Ringtones, please help