價格：免費
更新日期：2011-10-10
檔案大小：5.3 MB
目前版本：1.1
版本需求：需要 iOS 3.2 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Learn the most important secret of working musicians. Memorize the most used scales and their tones by number. You'll be able to instantly transpose music. This is the basis for the famous Nashville Number system. The lite version has 3 of the circle of fifth scales. The full version has all twelve.
支援平台：iPhone, iPad