The Bass Learnin' Tool is a simple application to help you learn the notes on the bass guitar fretboard. It provides an Explore mode and a Test mode. In Explore mode, you can mouse over frets/strings to see what notes they are, and quiz yourself. In Test mode, a fret/string is highlighted and you are asked to identify what the note is. You can set the time limit, what frets to be quizzed on, whether to include sharps/flats, and several other settings.