Yes. During the Challenges use:
- “X” to switch between the shown and hidden patch
- “Space Bar” to start/stop playback
- “Right Arrow” to trigger the Submit/Next button
And in both the Challenges and in the Standalone Synth use:
- "V" to toggle the Visualizer
- The row of keys that start with "A" to play the keyboard's white keys
- The row of keys that start with "Q" to play the keyboard's black keys
- The number row to set the range of the keyboard