AI Sheet Music Composer
Turns ideas into sheet music
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Compose real sheet music with AI. Explore new Core 3 and Insight 3 models, edit scores using simple instructions, and download instrument parts and audio.
Turn Your Musical Ideas into Real Sheet Music with AI.
ImpromptuAI is an AI-powered music composition app that transforms your ideas into written musical scores and audio. Describe the music you want to create in everyday language, and watch your ideas become compositions that you can read, listen to, edit and perform.
Unlike AI music generators that focus solely on producing audio, ImpromptuAI puts musical notation at the heart of the creative process. From a simple piano melody to an orchestral composition, ImpromptuAI helps bring your musical imagination to life.
HOW DOES IT WORK?
Simply describe your musical idea, including the instruments, style, mood, difficulty, length or any other musical instructions.
For example:
"Compose a melancholic string quartet in D minor with a lyrical violin melody."
ImpromptuAI interprets your instructions and writes the music, producing downloadable PDF sheet music and MP3 audio.
You can then refine your composition using AI-powered editing, exploring new musical possibilities without starting again.
KEY FEATURES
AI Music Composition
Create written musical compositions from natural-language descriptions. Explore different instruments, ensembles, genres, moods and musical styles.
NEW – Third-Generation AI Models
Choose from Core 3, Core 3+, Insight 3 and Insight 3+, our latest generation of AI composition models, designed to offer greater musical flexibility and creative possibilities.
NEW – AI-Powered Score Editing
Your first composition is only the beginning. Request changes to melodies, harmonies, instrumentation and other musical elements using simple written instructions.
PDF Sheet Music and MP3 Audio
See and hear your compositions. Download musical scores in PDF format alongside MP3 audio renderings.
Individual Instrument Parts
Generate separate instrumental parts alongside your full score, making compositions more practical for rehearsals, ensembles and live performance.
Explore Musical Examples
Discover sample compositions and explore what AI-assisted music creation can achieve.
Flexible Pay-As-You-Go Credits
Generate music using a straightforward credit-based system, with no subscription required.
Secure and Convenient
Sign in with Apple, manage your balance and receive notifications when your compositions are ready.
DESIGNED FOR MUSICIANS, EDUCATORS AND CREATORS
Whether you're an experienced composer or exploring music for the first time, ImpromptuAI offers a new way to experiment with musical ideas.
For composers, it provides a creative starting point for developing and refining new works.
For music teachers, it can help create teaching materials, sight-reading exercises and musical examples for discussion and analysis.
For students, it offers opportunities to explore harmony, rhythm, orchestration and composition while developing musical understanding and critical listening skills.
For performers and ensembles, it provides written music that can be studied, rehearsed, interpreted and brought to life.
AI THAT SUPPORTS MUSICIANS
ImpromptuAI was created from a passion for both music and technology, with a simple belief: AI should expand musical creativity, not replace musicians.
Music is more than generating sound. It is written, interpreted, rehearsed, performed and shared.
ImpromptuAI is designed to keep musicians at the centre of that process, making composition more accessible while encouraging exploration, learning and creativity.
AI-generated compositions may require musical review or refinement. Users are responsible for ensuring their use of generated content complies with applicable copyright laws and other requirements.
Imagine it. Compose it. Play it.
Discover a new way to create music with ImpromptuAI.
Ratings & Reviews
We're excited to introduce powerful new features to make composing music with AI even better.
• New AI Models. Introducing Core 3, Core 3+, Insight 3 and Insight 3+, offering more ways to create and develop your music.
• NEW – Edit Your Music. Refine existing compositions using simple written instructions. Change melodies, adjust instrumentation, improve sections and explore new musical ideas without starting from scratch.
• Individual Instrument Parts. Generate separate instrumental parts alongside your full score, making your music easier to rehearse and perform.
• Improved Music Notation. Enhancements to score generation and formatting.
• New Sample Compositions. Explore new examples showcasing what ImpromptuAI can create.
• Updated Website & Privacy Information. New website, updated Privacy Policy and Terms of Service, with direct links inside the app.
Thank you for using ImpromptuAI. We're continually working to make AI-powered music composition more creative, flexible and accessible.
The developer, MATTHEW SCOTT WINNEL, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MATTHEW SCOTT WINNEL
- Size
- 43.8 MB
- Category
- Music
- Compatibility
Requires iOS 18.1.1 or later.
- iPhone
Requires iOS 18.1.1 or later. - iPad
Requires iPadOS 18.1.1 or later. - Mac
Requires macOS 15.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.2 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 5 Tokens $0.99
- 25 Tokens $4.99
- 1 Credit $0.99
- 5 Credits $4.99
- Copyright
- © 2025 Matt Winnel