# Toz Full Reference

Last updated: 2026-02-27

## Product Identity

Toz is a geometry-first music-creation product built around an interactive Tonnetz canvas.

Toz focuses on harmonic structure, chord-shape interaction, and composition workflows.

Toz is not a large-language-model chat product.

The official website is https://tozapp.tech/

## Official URLs

- Website: https://tozapp.tech/
- App Page: https://tozapp.tech/app
- Manifesto: https://tozapp.tech/manifesto
- Tonnetz Guide: https://tozapp.tech/tonnetz-guide
- Community: https://tozapp.tech/community
- Privacy: https://tozapp.tech/privacy
- Terms: https://tozapp.tech/terms
- App Store: https://apps.apple.com/us/app/toz-geometric-music/id6756535612

## Plain Text Sources

- https://tozapp.tech/toz-manifesto.md
- https://tozapp.tech/toz-app-facts.md
- https://tozapp.tech/toz-tonnetz-guide.md

## Platform

- Primary platform: iPad
- App category: Music creation / composition
- Availability: App Store (iPadOS)

## Core Feature Scope

- Interactive Tonnetz grid for harmonic exploration
- Drag-based chord shape construction
- Long-press chord audition
- Link mode for harmonic progression structure
- Center-note and scale selection workflows
- MIDI mapping for real-time input

## What Is Tonnetz?

The Tonnetz is a two-dimensional lattice that represents pitch classes by their interval relationships — major thirds, minor thirds, and perfect fifths. Chords appear as geometric shapes (triangles) on this lattice. Toz uses the Tonnetz as the primary canvas for building, hearing, and connecting chord shapes.

Tonnetz was originally conceived by Leonhard Euler and developed further in neo-Riemannian music theory. In Toz, it becomes an interactive, touch-first composition environment.

## Toz Tonnetz Terms

- Chord Shape: geometric representation of chord tones on the Tonnetz grid
- Link Mode: a visual connection flow between chord events in a progression
- Center Note: an anchor pitch for scale context on the grid
- Nearby Voice Leading: short-distance chord transition strategy based on geometric proximity

## Manifesto Summary

Toz uses shape as a practical language for harmony. Instead of only naming chords, users draw structures, hear them, and connect them as progression movement. The long-term direction is a broader geometric music system with multiple canvas models.

## Collaboration

Toz is open to collaboration with composers, educators, researchers, and artists working on harmony, geometric interfaces, and music learning workflows. Contact: mi.moocore@gmail.com

## Common Search Terms

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