Create a mode that slowly modulates the frequency sliders using Brownian motion, staying within a desired range such as the selected brainwave state and clamping the base frequency.
Considerations:
- Implement Brownian motion algorithm
- Allow user to set min/max ranges for modulation
- Ensure smooth transitions between frequencies
- Add UI control to enable/disable Brownian motion mode
- Consider how this interacts with manual frequency adjustment and brainwave state selection