# Composia

> Music theory and composition tool with sheet music generation and MIDI export. (iPhone/iPad app by PDJ Apps.)

- Source: https://appshunter.io/ios/app/composia/id1489779313 (this page in markdown: same URL + `.md`)
- Developer: [PDJ Apps](https://appshunter.io/developer/290231771)
- Category: Music, Education
- Price: Free with in-app purchases
- Rating: 4.50/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 14 MB
- Languages: American English
- Released: 2019-12-26
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/composia/id1489779313/reviews.md

## What is Composia?

Create compositions and practice music theory with Composia. Export your creations to MIDI or PDF.

Composia is a project I started in order to apply music theory concepts - and help me learn them. 

There are a number components that I've had to build: theory, database, sheet music generation, menu system, and synth.

- Theory
So far I have programmed in Keys, Solfege, Scales, Chords, Phrases, Figures, Compositions and Part Writing. Getting the part-writing to work was very challenging. It doesn't follow the rules 100% in order to allow the user some more freedom to create.

- Database
I had to create a way to store compositions in such a way to retain context and allow AI to use for generation in future versions.

- Sheet Music Generation
The most difficult part so far has been the sheet music generation & exporting with realtime pinch zoom. At first I thought it wouldn't be SO complicated but turns out allowing for 4 voices and all the variations of notes and rests is very tricky. There is still a lot to do but it's at least stable now. 

- Menu System
Since I had to keep creating different menus to test various aspects I decided to go with a "neuron" menu system. This was also a giant pain to build but has made things easy once it was put into place.

- Synth
This is currently the weakest part of the project, but it produces a basic sound for the notes. I decided to use overtones to make a note sound louder. The louder the note the more overtones are attached.

## Key features

- Music theory concepts (Keys, Scales, Chords)
- Composition creation
- Sheet music generation
- MIDI and PDF export
- Real-time pinch zoom for sheet music
- Part writing tool

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Version | $4.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/composia/id1489779313/reviews.md

### 3/5 — Amazing but I wanna be able to make the notes.

*2020-08-06*

You see, I make my own music, it’s amazing how it generates. But I wanna edit the notes too.

## Frequently asked questions about Composia

### What music theory concepts does Composia cover?

Composia covers Keys, Solfege, Scales, Chords, Phrases, Figures, Compositions, and Part Writing. The part-writing feature allows for user freedom while aiming to adhere to music theory rules.

### Can I export my compositions from Composia?

Yes, you can export your compositions from Composia to MIDI or PDF formats. This allows for further editing or sharing of your musical creations.

### How is the sheet music generation in Composia?

Sheet music generation is a complex feature that has been stabilized, supporting up to 4 voices and various note/rest variations. It includes real-time pinch zoom for easy navigation.

### What devices does Composia support?

Composia is available on iPhone, iPad, and iPod. It is designed to be accessible across various Apple mobile devices.

### What is the age rating for Composia?

Composia has an age rating of 4+. This indicates it is suitable for a wide range of users, including younger learners interested in music.

### How often is Composia updated?

The app was last updated on January 14, 2024, with version 2.1. This suggests a relatively active development cycle for the application.

### Does Composia have ads?

No, Composia does not contain advertisements. This provides an uninterrupted experience for users focused on composing and learning music theory.

### What is the user sentiment for Composia based on ratings?

Composia has a high rating of 4.5 stars from 2 ratings, indicating positive user reception for its music theory and composition features.

## Version history (last 5 releases)

### 2.1 — 2024-01-14

Added MIDI export function.
Added 'purchase full version + support project' button.

### 2.0 — 2023-12-20

This is version 2.0 of Music Box AI. I have changed the app name to Composia and drastically improved the capabilities. I've had to strip the AI aspects for now but they'll be returned and be much more powerful in later versions.

### 1.3 — 2020-03-01

Added more options and a newly designed menu. 3/4 time and measure count constraints are now available.

### 1.2 — 2020-02-10

Created a basic sheet music engine.
Added slightly syncopated chord rhythm.

### 1.1 — 2019-12-31

Now the user has some access to phrase generation constraints.

## More apps by PDJ Apps

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- [Sand Garden](https://appshunter.io/ios/app/sand-garden/id343283376)
- [Art in Motion](https://appshunter.io/ios/app/art-in-motion/id385456596)
- [Line Art](https://appshunter.io/ios/app/line-art/id389294575)
- [Tesla Toy](https://appshunter.io/ios/app/tesla-toy/id395767185)
- [Atomic Toy](https://appshunter.io/ios/app/atomic-toy/id403391202)

All apps by PDJ Apps: https://appshunter.io/developer/290231771

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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 2026-08-24.*