SUS4 Scale Lab: Guitar Scales

Every common scale and mode, on guitar and piano. Guitar scales and modes shown on a fretboard and on a piano keyboard. 104 scales across 15 categories, each playable so you hear it as well as see it. Scale Lab is the reference you keep open during practice when you are learning a new mode, checking what notes belong to a harmonic minor in B, or visualising a Dorian scale across the guitar neck. It covers every standard scale and mode — 104 entries across 15 categories — displayed on guitar fretboard and piano keyboard. Switch root notes and scale types instantly. Scale positions light up across the neck. The app does not lecture; it shows you the information and gets out of the way. • Every common scale and mode: major, minor, pentatonic, modal, and more • Guitar fretboard view with scale positions across the neck • Piano keyboard view with scale notes highlighted • Switch root note and scale type instantly • Unlock: the full 104-scale catalog, Theory cards, Mode Comparison, Practice Loop No account. No mic. Runs fully on-device. Free to explore — monthly subscription or one-time unlock for the full catalog. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/