Haiiro - Guitare & Basse, from Haiiro, is a visual reference app designed to help musicians master the fretboard. The app displays an interactive fretboard and a library of scales so learners can explore neck patterns and positions during practice sessions. It also supports custom tunings and a left-handed display mode, available on Android with offline core features. Suited to beginners through advanced players, the tool clarifies music theory and supports focused daily practice.

How the tool maps theoretical concepts onto the neck

The app acts as a visual music-theory reference that surfaces relationships between notes and intervals rather than offering rote patterns alone. It provides a real-time view of interval relationships, helping learners see how modal degrees and harmonic roles sit across strings and frets. That approach supports conceptual understanding, so users learn why shapes recur in different positions instead of only memorizing fingerings.

Whether it adapts to different instruments and setups

The tool supports various stringed instruments through customizable string and tuning settings, including ukulele and mandolin presets. Users can change tuning and set an adjustable fret range to match nonstandard necks. A dedicated left-handed mode mirrors the display, and core reference features remain usable offline on Android devices, which makes practice possible without a live connection.

How learners can customise diagrams to their level

Diagrams show multiple chord and arpeggio positions so students can compare open, movable, and higher-neck voicings. A toggle switches between showing note names and interval labels, letting novices focus on pitches while intermediate players study functional roles. These options let individuals tailor the visual output to specific exercises or repertoire challenges.

Whether it fits into regular practice sessions

The interface emphasizes a clean, distraction-free layout intended for practice use; users report the simple design supports quick lookups during exercises. As a daily reference, it helps practicing instrumentalists confirm fingerings, explore alternate positions, and check tuning setups without navigating complex menus or cluttered screens.

Clear reference for self-directed learners, less so for course-based instruction

Haiiro - Guitare & Basse is a practical option for self-directed musicians who want a visual, on-device reference to understand neck relationships. The app focuses on mapping theory rather than delivering step-by-step lessons, so educators seeking structured curricula or classroom assignment tools should consider that limitation. For individual practice and conceptual study, the tool supports efficient on-the-fret learning when paired with a personal study plan.