Controlling score parameters from a spreadsheet

I'm preparing an orchestral backing track for a piano concerto.

My teacher and I are still tweaking tempi of the various sections. It would be really nice if the score could somehow be linked to a spreadsheet to act as a master/dashboard that stores the metronome markings we choose for each section. Then if we want to speed something up or slow it down I can just change the number in my spreadsheet rather than have to navigate around the score. And rather than having to keep a changelog in a separate word document or something, the spreadsheet is a natural place to keep the parameters from previous versions (just by adding a new column).

Another thing that would be really convenient to control from a spreadsheet are the velocities of certain dynamic markings. Especially since dynamics will need to change depending on the acoustics of the performance space, it would be nice to keep separate columns of these parameters for when I'm practicing at home vs. in the hall etc. rather than two fully separate versions of the score (which is then a problem if you change anything else like a wrong note etc. because then you have to remember to change it in the other version as well).

It doesn't necessarily have to be a spreadsheet; any solution that achieves the same sort of "dashboard control" would be welcome.