I use shortcuts to automatically start a specific music playlist based on the current time of day when my phone connects to my motorcycle's helmet audio system. I also have it automatically play music when I turn on the cheap waterproof bluetooth speaker in my bathroom. Finally, I used it to create an alarm that selects different music based on what I've been listening to recently instead of a static song I have to pick manually in advance.

I use it similarly. In fact, I used to use it with Notes for this exact purpose.

However, I improved it by recording the info into a Numbers spreadsheet now. Makes reporting and calculations easier.