I'm pretty sure this is a ScummVM issue, but I have no idea how to fix it. Here's what happens:

Whenever I go into the kitchen, for about 95% of my runs, no music plays. The cursor still shows and I can exit the room. However, whenever I try to trigger one of the songs/events (other than the dumbwaiter) in the kitchen, such as giving the carrot to the fridge, the game completely locks. It isn't frozen, since Sam is still blinking. I can't leave the room and the cursor is gone. The only thing I can do is restart the run.

I'm really bad with computers, so you'll have to be patient with me. Thank you!

I know exactly what you mean here, this softlock is very annoying, but there is a way to avoid it. When you get this softlock, press F5 to bring up the ScummVM menu, and exit to the launcher. To avoid having this issue, I recommend doing that process every 10-15 runs. Another thing I noticed with this softlock is that it is more likely to happen when you completed the game more than once; if you have completed the game more than once in a session, make sure to do the F5 and return to launcher process to make sure you don't get the softlock in future runs.

Another note related to Kitchen Glitch I've noticed. The glitch also seems to affect parts of the mines (the paths after the gold sign). It is not a softlock in these locations, but there is no music except for the gold room and the arcade room. If you visit the mines before the kitchen, then you can know if you have kitchen glitch before you softlock the game and can restart earlier in the run.