FRETBOARD GPS LOADING...
How to Use Fretboard GPS
  1. 1 Select a root note (KEY) and scale from the dropdowns
  2. 2 The fretboard lights up with color-coded note roles: root, 3rd, 5th, 7th, and extensions
  3. 3 Toggle between Notes and Intervals views to switch naming systems
  4. 4 Use SYSTEM to explore CAGED, 2NPS, 3NPS, 4NPS, 2-1-2, 3-1-3, and Pentatonic position logic
  5. 5 Open Settings for advanced controls: strings, CAGED chord source/type, interval injection, and overlays
  6. 6 Switch to Ear Training mode to test note recognition
  7. 7 Click any note dot to hear it
Pro Tip: Use 2NPS to visualize diagonal phrase paths, then compare the same key in 3NPS and CAGED to internalize the full neck.
READY
MIC INACTIVE
KEY
SCALE
SYSTEM
EXT

Studio Essentials

How to Use Fretboard GPS

Visualization: Select a Key + Scale to map notes across the full neck.
Systems: Choose CAGED, 2NPS, 3NPS, 4NPS, 2-1-2, 3-1-3, or Pentatonic position systems.
Advanced: Open Settings to configure strings/tuning view, CAGED chord source, interval injection, and overlays.

Practice Tools

Practice tools from Sean's studio

Tuner, metronome, fretboard maps, harmony references, timing utilities, and creative prompts built for serious guitar practice.

Tuner Chromatic pitch reference — tune by ear or by microphone input.
Metronome Tap tempo, variable subdivision, and accent patterns for steady-time practice.
Fretboard Interactive neck diagram — find every note, scale, and chord shape in any key.
Harmony Builder Chord and scale relationships at a glance — diatonic functions, borrowed chords, and substitutions.
Delay Calculator Enter a BPM, get millisecond values for every note division — dotted, triplet, straight.
Backing Generator Generate a simple chord-loop backing track to improvise or practice solos over.
Rhythm Trainer Clap or tap along to groove patterns — trains your internal feel for backbeats and subdivisions.
Idea State A creative prompt generator — breaks writer's block by giving you a random starting constraint.