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projectm
projectM - Cross-platform Music Visualization Library. Open-source and Milkdrop-compatible.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
You might give Milkdrop a try. It started as a Winamp visualization plugin. It has its own scripting language and a ton of presets you can poke at to figure out how things work. I'm not sure what state Winamp is in these days, but Milkdrop has been ported to work as a Foobar2000 plugin called ProjectM. It looks like there's also a standalone version now, too: https://github.com/projectM-visualizer/projectm
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