Comment by franze

Update: added a few more linetypes, all in all now

  Draw: Standard black lines. Dots bounce off these and play a sound. The note is based on the line's length and angle.

  Erase: Red lines used to delete other lines (including predrawn ones). Intersecting lines disappear.

  Toggle: Black lines that switch between active (solid) and inactive (dashed). When inactive, dots pass through without interaction.

  Silent: Dark gray lines that let dots bounce off but don’t produce any sound.

  Burner: Dark red lines that destroy any dot that touches them, no sound.

 Splitter: Magenta lines that split dots into two upon collision. The original dot is removed, and two new dots continue with altered trajectories.

also after some back and forth with somebody from the vienna philharmonics orchestra i now use this tonal scales

  Red: C major

  Blue: G major

  Green: E minor

  Black: A minor