I recently have started recording my practice on selections from the Euphonium Excerpt Book I helped create. The Invincible Eagle came to my music start the other day (before I knew it was adopted as the U.S. Space Force theme). As I was editing the video, I noticed a good visual correlation between what I thought I played and what the recorder heard.
Here is the waveform of part of the recording along with the music's notes.
Here is the march excerpt:
https://youtu.be/LceSy7PLoOE