Trope is an innovative iPhone application designed by Brian Eno and Peter Chilvers. It is a full version multimedia program that offers a different emotional experience from Bloom, their previous successful application. Trope offers a unique musical experience that immerses users in endlessly evolving soundscapes created by tracing abstract shapes onto the screen.

The application is darker in tone, more introspective, and atmospheric, making it perfect for headphone and external speaker use. Trope's generative music is one of the newest forms of sonema, and it draws on a broad palette of moods, as stated by Brian Eno. The program is highly recommended for music lovers who are looking for a unique and immersive musical experience. The application is available for iPhone users and can be purchased from the App Store.