Uploaded December 2010 | Updated September 2026, 1 hour ago

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This is a visualizer for VisualBoyAdvance-rerecording, written in Lua. The Lua script tracks the notes that are being played on the three note channels and draws a piano roll. Note how vibrato, pitch slides and arpeggios affect the visualization.
On the top, you can also see the waveform that the wave channel is currently using.

Download: http://gbdev.gg8.se/files/misc/notevisualizer/