Unironically, sending a program to build those for me have send me almost endless amount of time. I'm a pretty distracted individual, and pretty anal about my workflow/environment, so lots of times I've spent hours going into rabbit-holes to make something better, when I could have just sucked it up and do it the manual way instead, even if it takes mental energy.
Now, I can still do those things, but not spend hours, just a couple of minutes, and come back after 20-30 minutes to something that lets me avoid that stuff wholesale. Once you start stacking these things, it tends to save a lot of time and more importantly, mental energy.
So the programs by themselves are basically "small inconsequential side projects" because they're not "production worthy and web scale SaaS ready to earn money", but they help me and others who are building those things in a big way.
Nowadays, I fire off the LLM to figure it out for me, then try out what I get back, and I can move on to actually having fun playing on the synth, rather than trying to figure out how to do what I wanted to do.
The end goal for me with my hobbies is more or less the same, have fun. But for me the fun is not digging through manuals, it is to "do" or "use" or "perform" or whatever. I like music production because I like to make music, not because I like digging through manuals for some arcane knowledge.