Amazon.com description: Product Description: Correlating software for the most complete music theory course ever! This all-in-one series includes concise lessons with short exercises, ear-training activities and reviews. Available in two separate volumes or as a complete set, the software includes narration, animated examples and clickable elements for aural reinforcement. Also includes randomized exercises, ear training and review answers. A glossary of all terms and symbols with definitions, pronunciations, and visual and aural examples is also included. The Lab Pack for 10 computers includes the ability to access unlimited multiple student records, a custom test generator, printing of class lists, and exporting and importing of student records in batch. It includes 1 Educator disc and 9 student discs. Each machine running the program will need to have the disc in the CD-ROM drive. With the lab pack, the computers are not networked. Network Versions are also available separately and offer additional functionality.