Interactions with Music.

We design playful, spatial experiences.

From rapid prototypes to show-ready demos & production apps, we turn complex technology into things you can feel.

See what we make Contact Us

We believe in

Play as a serious tool
Bleeps, Bloops, Springs & Splines
Discovery as a way of working
Human-made design, no AI slop
Add MIDI wherever possible.

The 5of12 team at a creative technology event.

About

Creative technologists working across sound, space & play.

We are a UK studio experienced in spatial computing, audio technology & software delivery. We design & build immersive experiences for human interaction.

The Team Pete Tom Ant

About 5of12 Email us

Play

Apps, Games & Plugins for curious hands & ears.

Products we've released, playful worlds to explore, & new musical tools currently taking shape in the studio.

Apps

Download & Play.

Released iOS

Playtonik

A playful musical fidget toy where physics, haptics & deep MIDI connectivity turn small gestures into sound.

Explore Playtonik

Released iOS, visionOS, macOS

MIDIWeb

A browser built for Web MIDI, making it easier to learn, explore & create with connected musical devices.

Visit midiweb.cc

Coming soon macOS, iPadOS

TypeTone

A new musical typing experience that turns words, rhythm & keyboard gestures into playful sound.

Visit typetone.cc

Coming soon iOS, macOS

MIDIVision

Camera-powered hand tracking turns movement into expressive MIDI notes, chords & controls.

Visit midivision.cc

Games

Musical puzzles & playful prototypes.

Released WebXR, Desktop, mobile

Pezzi

Music in pieces: build with blocks, solve musical puzzles & hear each tune come to life.

Play on VIVERSE Visit playpezzi.com

Released Meta Quest

Sonic Escape

A musical escape-room prototype built for the Meta Horizon Start Developer Competition 2025.

Watch the project

Plugins

Tools for your favorite DAW.

Coming soon VST audio plugin

Phase Rider

A new 5of12 audio plugin for shaping movement & phase relationships in sound.

Coming soon...

Work

From first sketch to finished experience.

Creative technology services, a broad production toolkit & trusted partners for ambitious interaction work.

A creative technologist working with a 3D hand model & node-based material tools.

Selected work

Products, prototypes & systems.

iOS musical instrument

Playtonik

A playful musical fidget toy for iPhone/iPad with physics, haptics & deep MIDI connectivity.

2025 MIDI Innovation Award
Physics-driven sound
MIDI Support

Explore Playtonik App Store

Browser interaction prototype

MediaPipe Playground

Gesture-led browser experiments exploring comfortable hand & body control with nothing more than a webcam.

Web camera only
One/Two hand input
Real-time interaction

View playground Try it out

Gesture system for Unity

Cacophony

A Unity gesture library built to make screen-based spatial interaction readable, reliable & fun.

Unity-first workflow
Platform-agnostic gestures
Action & reaction

Read the article GitHub

Toolkit

Tech we design with / for

Apple Cross-platform App Store development for iPhone, iPad, Mac & Apple Vision Pro. Meta Quest 3 and Quest 3S development for spatial apps & experiences. Unity Cross-platform games, rapid prototypes & reusable creative tooling. Threlte Svelte-native 3D & WebXR experiences for the browser. Svelte Fast, accessible websites & focused interactive interfaces.

Capabilities

What we help build.

Focused creative technology work for teams exploring interaction, audio & spatial interfaces.

Rapid prototypes

Early technical proofs, design prototypes & show-ready demos for ideas that need to be felt before they can be judged.

Spatial computing

XR and mobile apps using hand tracking, gaze, haptics, scene understanding & spatial UX.

Novel interaction systems

Gesture vocabularies, mid-air UI, touchless controls & multi-modal input systems for screens & spaces.

Immersive demos

Event, exhibition & executive demos that make technical value clear, robust & memorable.

XR app development

RealityKit, ARKit & Unity builds from concept through implementation, polish & release.

Tools, plugins & SDKs

Audio plugins, Unity utilities, browser tools & developer SDKs that turn prototypes into reusable systems.

Partners

Who we work with.

Companies & teams we've collaborated with across creative technology, mobility, energy, music & spatial computing.

Watershed Pervasive Media Studio Uno Minda Distance Ultraleap + ROLI 50Hertz SRT Marine HTC VIVERSE

R&D

Experiments & notes from the build process.

Experiments, prototypes & field notes from our ongoing research into sound, spatial computing & new forms of interaction.

Blog

Notes from the Lab.

25 June 2026 5 min read

Why did we build a Web Browser for MIDI?

Every now and then we run into a problem that feels small on the surface but scratches a real itch... MIDIWeb started as one of those problems - a chat with a friend who asked: "Why can't I connect my OP-XY to my iPad and use this website?!" WebMIDI is brilliant.

10 June 2026 3 min read

Introducing Pezzi

5of12 is a team of developers, designers and musicians. So, when we caught wind of the VIVERSE Creator Program, we jumped at the chance to combine all the things we love and build a joyful, relaxing, music-focused puzzle game!

29 September 2025 5 min read

How to connect iOS to MIDI for Playtonik

Playtonik is a MIDI Innovation Award winning musical fidget toy for iPhone and iPad. We built Playtonik to be fun to play with straight out of the box, with no external gear, but for those of you with hardware or software synths there's a whole other layer of fun.

View all posts

Experiments