GSequencer playing AgsDrum, AgsHybridSynth and AgsAudiorec. Visualized audio frequencies by AgsSpectrometer.
...
https://www.youtube.com/watch?v=dtulRshrzQY
GSequencer running different synthesizers and wave form loops. Linux mate desktop, ffmpeg and gsequencer on AMD Ryzen 7 5800U.
...
https://www.youtube.com/watch?v=vJPtjl1vnR0