Products->ACS Junior
ACS Junior is a software that helps you compose your original song easily even if you don't have a musical knowledge.  

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Complimentary Sale of ACS
Applicable Types of Mobile Phones
Help Pages of ACS Junior (Only available in Japanese)

Easy for Beginners
If you are a DTM beginner who do not have musical knowledge,  but wishes to attach BGM onto your  homepage or your own games, just choose your favorite music style (arrangement patterns) out of 100 or more styles from ACS Junior. Your original MIDI file will be created. 
Creating Ringtones by Automated Arrangement
In the converting mode to perform automated arrangement, you can change only the music style by loading MIDI file, leaving the original melody and chord progression. A file of ringtone can be outputted in the Automated Composing System. It is not necessary to thin out a  sound if you use the automated arrangement function even when 16 or more chords are contained in the original MIDI file. A piece like Beatles' up-tempo rock number can also be changed and outputted to a style of musical box which will suit the ring tone.