The Auralia demo has all the administrative and other functions of Auralia, but only has one question per level in each topic.
Windows: Windows XP, Windows Vista, Windows 7, 512MB+ RAM, 200MB hard disk space, CD-ROM drive.
Mac: Intel processors only, Mac OS X 10.6.8, Mac OS X 10.7.3 or later, 512MB+ RAM, 400MB hard disk space, CD-ROM drive.
All platforms: Microphone optional
Versions of Windows earlier than Windows XP are no longer supported, and Macs with PowerPC processors (e.g. PowerMac G4, PowerMac G5, original iMac, PowerBook G4, etc.) or versions of Mac OS X prior to Mac OS X 10.6 cannot use Musition 4.