Magic Polyphonic Ringtone
Magic Polyphonic Ringtone is a fast, fun, easy to use tool that helps you to create original ringtones for your mobile phone. Or you can simply choose a premade polyphonic ringtone stored specially for you, and have it customized as you wish. Magic Polyphonic Ringtone is compatible with the... Experience the unique interactive Ringtone Composer that provides many new features like length resizing, speed and ringtone duration. ... Magic Polyphonic Ringtone is created as a friendly, easy to use desktop application: all you have to do in order to have the greatest ringtone on your mobile...
http://magic.mecst.com/mpr_site/download/mpr_setup.exe - 178Kb - Download - Screenshot

Ringophone.com ringtones composer
Compose ringtones by simply playing them using the virtual piano. A natural way of composing a ringtone.
http://www.ringophone.com/ringtone-composer.exe - 52Kb - Download - Screenshot

Quick Ringtone
Quick Ringtone is an EASY TO USE Tool that can convert audio to mobile phone ringtone. Currently it can only convert ringtones between MIDI, RTTTL, MOTO Composer, eMelody and iMelody code. Quick Ringtone can also convert these to Screen-Show format and Key-Press format for some special model... Quick Ringtone now support converting MIDI format to other formats (includes RTTTL, MOTO composer, eMelody and iMelody). ... (in the coming version) Quick Ringtone will support converting ringtones to mobile phone key-press code.
http://www.LightThoughts.com/download/qringtone.exe - 1Mb - Download - Screenshot

Coding Workshop Ringtone Converter
This software allows you to convert midi files and ringtones found on the net in RTTTL and Nokia Composer format into files or key sequences for your mobile phone. You do not need cables or sms services for the majority of handsets, and can also download images to your phone. ... " There is also a built in ringtone composer for those who know how to work a piano, and lots of easy to use tools for those who do not! ... Quote: "All you need is your phone and the Ringtone Converter! ... The list of supported phones grows every week.
http://www.codingworkshop.com/ringtones/download/cwrtinst.exe - 6Mb - Download - Screenshot

Pimp-up your Phone
Pimp-up your Phone! Free software to enhance your phone, songs, ringtones and wallpapers. Get the latest sounds and stuff for the latest phones. We bring you the largest collection of polyphonic ringtones and monophonic ringtones, graphics, games and software. ... Huge range of polyphonic, real music and video ringtones as well as monophonic and free composer ringtones for Nokia, all the latest hits as realtones, monophonic & polyphonic ringtones! ... All ringtones and graphics have previews.
http://www.eusoftnet.com/mfa/pimpup_myphone.exe - 1,008Kb - Download - Screenshot