Click on the "new" button and make a sound

Choose the geometric shape you want and click on "validate"

First click on the shape to select it.
Use the left menu to edit each edge, you can choose between Normal/ Reverse/ Down/ None.

By changing the size you influence the speed of the sample being played. Select the shape and the size you want (there are three different sizes).

To delete a shape select it and click on the trash can.

You can adjust the volume by moving the shape from top to bottom. Change the pan by moving it from left to right.

Using the random button is dangerous but it can produce amazing compositions.