UPISketch4
Music
$11.99
Let's draw music!
UPISketch is a composition tool that keeps the principle of “pitch versus time” of the classical score, extended in the continuous domain. It allows for freely drawing absolute pitch curves applied to existing sounds. It uses granular synthesis. It can be used to sketch musical ideas, try alternative scales (divisions of the octave), and more.
It is inspired by the famous UPIC machine that was invented in 1977 by Iannis Xenakis and the CEMAMu engineers.
Version 4 introduces significant changes: improved sound quality, sequence recording, and a magnetic grid feature.
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The developer, Rodolphe Bourotte, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Rodolphe Bourotte
- Size
- 43.9 MB
- Category
- Music
- Compatibility
Requires iOS 12.0 or later.
- iPhone
Requires iOS 12.0 or later. - iPad
Requires iPadOS 12.0 or later. - iPod touch
Requires iOS 12.0 or later.
- iPhone
- Age Rating
4+
- 4+
- Copyright
- © 2017-2026 Centre Iannis Xenakis

