Absolute Pitch Trainer for guitar uses a specialized algorithm which gradually builds your absolute-pitch skill level to 100%. Users start out learning one note, which is played an equal number of times across all octaves of the guitar fretboard. The software constantly gauges your progress, and adds a second note when you are ready for it. This process gradually continues until the entire 12 notes of the chromatic scale are added, being played across all octaves of the guitar fretboard. Alternatively, you can manually choose which notes to train.