Trope, designed by ambient pioneer Brian Eno and musician / software designer Peter Chilvers, expands further on the ideas introduced by Bloom, their acclaimed iPhone application.  Darker in tone, Trope immerses users in endlessly evolving soundscapes created by tracing abstract shapes onto the screen, varying the tone with each movement.

Recommended for headphones and external speakers.

"Trope is a different emotional experience from Bloom - more introspective, more atmospheric. It shows that generative music, as one of the newest forms of sonema, can draw on a broad palette of moods." - Brian Eno

What's New

Version 1.3

Trope has been given a complete interface redesign for iOS 8. It is now a Universal app, and runs natively on the iPad as well as the iPhone.

Ratings and Reviews

4.7 out of 5
15 Ratings
15 Ratings

Amazing generative music app!

Was uncertain since app hasn’t been updated in 3 years; however, it works fine on my iPad Pro with iOS 11. Having been a fan of Brian Eno in my youth, I enjoy creating and listening to these ethereal and calming tones. How to use: Draw several lines or dots with your finger, then wait for the song to develop; the music will follow the patterns you created. Also, the neon color flows and geometrics are beautiful to behold! Very relaxing and meditative, for those into this genre.


Lovely app, lately afflicted by a bug

Trope is, along with Bloom and Reflection, a wonderful collaboration between Brian Eno and Peter Chilvers, fusing Eno's ideas about "generative music" with the computing power and portability of iOS devices. Compared to Bloom, Trope is more flowing though perhaps a bit darker.

Unfortunately, as of iOS 10 this app seems to have developed a bug that speeds up the sleep timer and may also affect playback. While I recommend all these Eno/Chilvers apps very strongly, I'd suggest waiting for this to be patched.

Developer Response

Please not that this issue only occurred with iOS 10.2 - if you update to iOS 10.3, the sleep timer will function correctly. Sorry for the inconvenience.


Love it

Warm, therapeutic, adult play, and--why not kids? They'd love it even if attention span would keep it short.
Opens creative doors--the simplicity and perhaps even limited or focused direction of these glorious Eno apps are an asset, not a limitation.


Opal Limited
38.7 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Italian, Japanese, Simplified Chinese, Spanish
Age Rating
Rated 4+
© Opal Limited 2009


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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