Comment by cmdr2

I'm trying to understand this topic more, so I'm curious what you mean by the word tracking. I searched around, and wanted to check if my understanding is roughly correct:

Is tracking when the frequency data of the instrument, and the frequency+tempo changes in the music track are stored? And does midi just say "guitar" or "piano" and leave it up to the software to decide what those instruments sound like? So tracking would always reproduce the same sound, while midi can vary, even if it's making the same tones?

For e.g. an acoustic guitar and an electric guitar might both be producing a note at a particular base frequency (e.g. C2) but the overtones and amplitudes of those overtones would be completely different, giving each instrument their particular sound. So does tracking record that overtone distribution for each instrument, to ensure an acoustic guitar sounds like an acoustic guitar (that the music composer wanted)?

This is the source that I was reading - https://scalibq.wordpress.com/2017/03/29/trackers-vs-midi/

If not, I'd really appreciate any other reading material to understand what you mean by tracking, thanks!