From the developer: "The Electric Bass Companion is a tool to help bass players learn the notes and scale patterns on the fingerboard. As a beginner you can use this program to learn major and minor scales on your 4-string bass. As an experienced player, this program will help you learn any custom scale pattern, in custom tunings, in any key, using 4,5,6,7, or an 8 string bass. This simple musician's tool will be your companion as you learn to play the electric bass."