I've used two ring boards to create a desktop lamp. 

The code has been heavily modified to integrate the new spectrum analyzer mode, in which the LEDs react according to frequency from 20Hz (led at 12 o'clock) to 2kHz ( 11 o'clock). Colors also been improved to perform more changes based on sound rhythm.

You can check the updated code at the github repo.

More info on the project page: https://hackaday.io/project/184291-pilot-sound-reactive-neopixel-lamp