Wolfram Tones is an online sound generator that can help you create 100% original patterns of music that you can download to your cell phone and use as a ringtone. You’ll get a different tone every time you press the composition button.
Using Wolfram is simple. Just select a genre or style of music for the ring tone (like Rock, Jazz, Classical, etc.) and the program will generate a completely random but pleasing tone. You can even specify how various musical instruments should be used to render the composition.
When you are done, you can either download the MIDI ringtone to your computer or you can send it directly to your cell phone via SMS as a ringtone attachment.