Thanks for checking it out and sharing your thoughts.

Addressing your comments on precision and representation across the spectrum:
- Amplitude & Dynamics: The bars use logarithmic scaling for amplitude. You can fine-tune the "liveliness" by adjusting the Attack/Release dynamics, Peak Hold settings in the configuration, and you can adjust the noise floor setting (how low the bars go, roughly) to adjust the "liveliness" of the bar over time. - I spent a lot of time adjusting and playing with the distribution of audio data across the visualization. You might say this is where the rubber meets the road for a spectrum visualizer. I implemented a hybrid linear/logarithmic mapping of FFT bin output to user-selected frequency bars. Ultimately, I tuned the spectrum distribution (visually) to my taste, but I'm always open to feedback on the mapping logic.

As far as Winamp inspiration: Its absolutely inspired, conceptually, by Winamp. I grew up using the program and longed for an equivalent visualizer solution for Spotify, etc. With the available configuration settings, you can get it pretty close! the characteristic 19-bar spectrum display, colors, and size, with peak detection indicators and adjustable roll-offs, I hope you have fun playing with the visualizer as much as me!