squiggy keyboard reference
| key | action |
| ------------------------ | ------------------------ |
| mouse button | draw |
| command+mb | scrub |
| option(alt)+mb | image info |
| Fkeys (F1-F12) | switch between spectrograms |
| numbers (0-9) | set drawing color (amplitude) |
| e | eraser/pencil toggle |
| E | erase entire image |
| space | toggle playback |
| return | play from beginning |
| r | record toggle |
| a | autoswitching |
| A | randomswitching |
| ------------------------ | ------------------------ |
| + - * / | + - * / two images |
| = | copy |
| up/down arrow | frequency shift |
| [] | time stretch/compress |
| () | gain change |
| c | phase copy |
| C | amplitude copy |
| l (the letter) | 5 loudest bands |
| L | 10 loudest bands |
| d | deharmonize |
| D | deharmonize more |
| f | flip top-to-bottom (frequency) |
| F | flip left-to-right (time) |
| b | blur frequencies |
| B | blur time |
| w | wierd filter |
| n | noise |
| N | random vertical stripes |