Increasing the tactile experience
I started sketching concepts that might help users think more spatially. I wanted to bring order to the input methods while also focusing on toy-like interactions that promote playfulness.
Build a stack to build a song
I realized that the best way to increase tactile playfulness while also creating a linear journey is to create a simple vertical stack. This stack represents the layers of sound built by the user. To modify the sound, add another layer. To undo that change, simply remove it.
To help illustrate how Tone Lab works, I made an appearance model with LED animations. The lights cycle through a 16 step sequencer loop.