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

3.2 out of 5

6 Ratings

6 Ratings



Somewhat more weighty and textural than Bloom, I use this for background atmosphere, creative work, relaxation and travel. I find generative music absolutely fascinating and the guys who made this have done well. Beautiful.

Updated review


For some reason the App would update and was giving me errors about iOS 11 incompatible but a hard reset has now updated and it no longer complains

Developer Response

This is incorrect - Trope runs under 64 bit, and done so for some time. I suspect you are running an older version, please try updating or contact our support address and we'll sort out the issue.

Problem with update


Since updating I can only listen not create. Please could you address this?


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

    Up to six family members will be able to use this app with Family Sharing enabled.

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