---
title: "Cantus - Voicing Lab - Reviews, Revenue and Downloads in Portugal | Apple App Store"
description: "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,"
---

# Cantus - Voicing Lab — Portugal

![Cantus App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/88/89/59/888959d3-0789-6561-e2f1-18bad3edc235/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Jason Zachariah](https://apptail.io/developer/jason-zachariah-Gmexlc)
**Category:** Music
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.nathanielschool.cantus
**Store:** Apple App Store
**Country:** Portugal
**Version:** 1.0.1 (released 2026-06-01)
**Original Release:** 2026-05-27
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/pt/app/app/id6772984019)
**AppTail Page:** [https://apptail.io/app/cantus-voicing-lab-MgQA/portugal](https://apptail.io/app/cantus-voicing-lab-MgQA/portugal)

## Cantus Description
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.

## Cantus Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/7b/28/1b/7b281b95-1a63-bbe9-be1e-2f5de5d6333e/01_iphone_6_9_voicing.png/1290x2796.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/68/f3/d5/68f3d5ea-73b8-8250-4a4a-7904644c68e1/02_iphone_6_9_pinboard.png/1290x2796.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/af/e2/18/afe21875-3ff3-9664-2b52-f13123a405b0/03_iphone_6_9_keyboard.png/1290x2796.png)






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## Cantus Available In
- [United States](https://apptail.io/app/cantus-voicing-lab-MgQA/united-states)
- [Sri Lanka](https://apptail.io/app/cantus-voicing-lab-MgQA/sri-lanka)
- [Portugal](https://apptail.io/app/cantus-voicing-lab-MgQA/portugal)

---

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