Why this exercise

• It builds real recall. Walking up a string in order (A, B♭, B…) lets you count frets instead of knowing the notes. The circle jumps around, so you have to find each note from memory, and that is what makes it stick.
• One lap covers all 12 notes. Every pass visits every note on the string, so nothing gets skipped.
• It moves the way music moves. Chords often change by fourths and fifths, so you are training the sound of real progressions too.
• It unlocks lead playing. When you know every note on the neck, you can play in any key, aim for chord tones and move ideas anywhere on the fretboard.

How to use it

1. Pick a string, a starting note and a sound, then press Start. You get a four-second count-in.
2. Begin with Visual: the neck shows where each note is. Say the note name as you play it.
3. As it gets easier, switch to By ear. The neck stops showing the answer: find the note from its name and listen that it matches the reference.
4. Set Strings to Up & down to work through every string. Start on Low E to go up the neck or High e to go down, and switch between fourths and fifths so the order never becomes routine.
5. Shorten Time per note as you get faster.

F♯ and G♭ are the same fret. 0 = open string; dots mark frets 3, 5, 7, 9 and 12. When two spots light up, either octave is right.