# Cantus - Voicing Lab — Chord voicing explorer

> Chord voicing explorer (iPhone/iPad app by Jason Zachariah.)

- Source: https://appshunter.io/ios/app/cantus-voicing-lab/id6772984019 (this page in markdown: same URL + `.md`)
- Developer: [Jason Zachariah](https://appshunter.io/developer/1896513710)
- Category: Music, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2026-05-27
- Data updated: 2026-09-17
- User reviews in markdown: https://appshunter.io/ios/app/cantus-voicing-lab/id6772984019/reviews.md

## What is Cantus?

Cantus - Voicing Lab is an interactive harmony and chord-voicing tool by Nathaniel School of Music for pianists, composers, producers, and music theory students.

Explore how notes move inside chords, hear voicings in context, and study color, tension, and modal relationships from the keyboard. Cantus is designed as a focused practice lab: pick a sound, inspect the voice leading, and build intuition for how harmony feels under your hands.

FEATURES
* Interactive chord and voicing explorer
* Piano keyboard visualization
* Modal and scale-based harmony practice
* Voice-leading movement and pinboard-style comparison
* Tone.js audio playback
* Self-hosted fonts and bundled web assets
* Works without an account

BY NATHANIEL SCHOOL OF MUSIC
Built for practical harmony learning, composition practice, and deeper chord fluency.


## Version history (last 2 releases)

### 1.0.1 — 2026-06-01

Improves iOS audio playback reliability and native app behavior.

### 1.0 — 2026-05-28

No release notes.

## More apps by Jason Zachariah

- [NSM Groove Metronome](https://appshunter.io/ios/app/nsm-groove-metronome/id6768036637)
- [Note Forge: Music Theory](https://appshunter.io/ios/app/note-forge-music-theory/id6771579983)
- [Chord Randomizer](https://appshunter.io/ios/app/chord-randomizer/id6771607928)
- [Chord Trees](https://appshunter.io/ios/app/chord-trees/id6772963450)
- [NSM Circle of Fifths](https://appshunter.io/ios/app/nsm-circle-of-fifths/id6772973741)

All apps by Jason Zachariah: https://appshunter.io/developer/1896513710

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-17.*