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SQNTIAL is a guitar and bass theory, visualisation, and structured practice platform designed to help musicians better understand the fretboard.

It connects musical ideas to the places they live on the instrument through focused browser and mobile experiences.

SQNTIAL is for anyone who wants to build a deeper understanding of the guitar or bass fretboard.

Beginners, experienced players, teachers, students, songwriters, and curious musicians can each use the platform in a way that suits how they learn.

No. SQNTIAL does not require prior theory knowledge.

You can use it as a visual practice tool, or use the language of notes, intervals, scales, and chords to explore ideas more deeply over time.

A clearer understanding of the fretboard gives you more options when learning songs, improvising, writing, teaching, or communicating with other musicians.

SQNTIAL supports that understanding without prescribing a single way to learn.

SQNTIAL is built around accurate theory, structured practice, and interfaces that keep attention on the musical idea.

It is a workspace for exploration and repetition rather than a game or a collection of disconnected diagrams.

SQNTIAL began as a personal project for returning to guitar and rebuilding a practical understanding of the fretboard.

It grew from a need for one clear place to connect accurate theory, visualisation, and regular practice.

SQNTIAL is available for iPhone and is designed for iPad. The current App Store release requires iOS or iPadOS 13.0 or later.

Android is represented by the beta programme on the MOBILE page; no public Google Play download is currently linked from this site.

SQNTIAL is free to download and includes the core learning and visualisation experience.

An optional SQNTIAL Plus upgrade unlocks additional instruments and advanced features. The current local price is shown in the app before purchase.

Yes. The current app supports 6–10 string guitars and 4–6 string basses.

Extended instrument options form part of the app’s customisation and Plus offering.

The current app includes Full Neck, Box, and three-notes-per-string views, alongside note and interval display options.

Yes. Left-handed mode is available with the current display preferences.

Contact SUPPORT for assistance, bug reports, and feature feedback. Operational questions are handled here so MOBILE can stay focused on the application.