Musique Concrète
Source sound on freesound.org
The Sound used was a pack of cards being shuffled normally and being shuffled with the bridge. The etude has a very unusual form as it doesn't follow a set ABA or ABCBA pattern. Its pattern is best described as ABCDBE. This shows that some things repeat and others are repeated but with different context around it.
Mix of étude on Soundcloud
Audacity Screenshot
Pictured above is the complete etude for my Musique Concrete project. You can see that the piece is just over a minute long and consists of about Five audio tracks. Some examples of different effects used are the Paul Stretch, Reverb, Reverse, Fade In/Fade Out, and Pitch Shifting up or down.