Visualise
See scales, chords, intervals, note names, and fretboard structures directly on the instrument.
Explore relationships that are often difficult to visualise using traditional diagrams, books, or static reference charts.
SQNTIAL
Fretboard Intelligence
Theory-driven practice and exploration for guitarists and bassists.
SQNTIAL provides tools for visualising scales, chords, intervals, note relationships, and fretboard structures across a wide range of instruments and tunings.
Whether you're learning songs, studying theory, writing music, teaching, or exploring new musical ideas, SQNTIAL helps connect concepts to real locations on the instrument.
Explore scales, chords, intervals, and note relationships directly on the fretboard.
Who Is SQNTIAL For?
SQNTIAL is designed for musicians who want to explore the fretboard beyond memorised patterns.
Whether you're learning songs, studying theory, writing music, teaching, preparing lessons, developing improvisation skills, or exploring new musical directions, SQNTIAL provides a practical environment for investigating how music is organised across the instrument.
SQNTIAL may be useful to:
- Guitarists and bassists
- Self-directed learners
- Teachers and students
- Songwriters and composers
- Improvisers
- Session musicians
- Curious musicians at any stage of development
The defining characteristic is not skill level.
The defining characteristic is curiosity.
Product Overview
SQNTIAL combines visualisation, exploration, practice, and theory reference tools into a single environment designed specifically for guitar and bass.
Rather than presenting isolated diagrams or disconnected theory concepts, SQNTIAL helps musicians investigate how scales, chords, intervals, and note relationships connect across the fretboard.
The goal is not to provide shortcuts.
The goal is to provide a workspace for exploration, observation, repetition, and practice.
SQNTIAL is a practice and exploration tool.
Explore
Investigate different positions, tunings, instruments, and fretboard views.
Move beyond isolated shapes and explore how musical ideas connect across the neck.
Practice
Support self-directed musical development through structured practice tools and guided exploration.
Use practice timers, prompts, and visual references to create consistent practice sessions and investigate musical ideas more efficiently.
Accuracy & Flexibility
SQNTIAL is built around accurate theory representation and flexible instrument support.
Whether you play standard tuning, alternate tunings, guitar, bass, or extended-range instruments, SQNTIAL provides a consistent environment for exploration and study.
Features include:
- Scale and chord visualisation
- Theory-driven note spelling
- Interval exploration
- Alternate tunings
- Extended-range guitars
- Bass guitar support
- Multiple fretboard views
- Practice timer workflows
- Audio note preview
- Left-handed support
Availability approaching
Available On Mobile
SQNTIAL is designed for musicians who want a practical way to explore scales, chords, intervals, and note relationships directly on the instrument.
Coming Soon to the App Store
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