Duration: 3:08

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This is the title theme to the ZX Spectrum game "Chronos", composed by Tim Follin. This song is unique in a way that it mixes multiple audio channels in software before outputting to the beeper. This lets the ZX Spectrum play music with multiple voices. And even drums.

Link to FLAC of each channel and original audio: https://url.kylxbn.com/CNnyLj

This was created by reverse-engineering the sound playback routine, patching the TAP file for each channel, recording the audio for each channel muted (and all channels unmuted) using SpecEmu 3.2, aligning the audio using Audacity (because SpecEmu doesn't seem to be cycle accurate and each recording is not aligned with each other both in timing and speed) and finally, making the visualization with corrscope.

My head hurts because I literally listened to the soundtrack at least 10 times, to record each channel and also for trial and error.