The output of that program is an animated video that corresponds to the volume and frequency of the music. This numerical data becomes an input for a program with predefined algorithms. Music visualizers analyze the waveforms from an audio file. They look like simple art that accompanies and morphs with the music at a glance. Do you remember those odd waveforms, colors, and shapes morphing on your screen when you played an audio file using Windows Media Player or WinAmp? That was a music visualizer. Visualizers don’t get the appreciation they deserve. One could type “Spotify:app:Visualizer” and access the feature. Spotify app makers quashed any future plans for the visualizer in 2017. Spotify visualizer was a hidden feature from 2014 to 2017. The company takes the trophy for the first thought while talking about music subscriptions. It’s the age of browsing through catalogs and subscriptions. One couldn’t imagine audio without a visualizer. Visualizers were the norm back in the glory days of music.

Visualizer for spotify 2017