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Fretboard Domination Trainer for 5-string bass guitar.. Arguably the simplest and yet the most practical and powerful practice app for bass players of all styles. The five scales that every bassist needs to know (Pentatonic, Blues, Major, Harmonic Minor and Melodic Minor), five patterns to dominate the whole fretboard, and a metronome. Get the five patterns down at 80 bpm. Then play up one, down the next, up the next and so on. Practice from 80 to 150 bpm then do 2/3/4/5/6 notes per beat. After 6-8 weeks of consistent and intelligent practice you will be starting to see and play every note all over the guitar neck at blistering speed.