Install the Science Packs but Drinks mod so it looks like a party even more

https://mods.factorio.com/mod/drunk-science

To be fair, all that singing will make someone thirsty

The music changes when the manipulator puts the research bottles, it spoils the impression very much, fix it if you can please

The music changes when the manipulator puts the research bottles, it spoils the impression very much, fix it if you can please

The mod is currently just replacing the existing sounds. I'd have to make some way of saving what song is/was playing, and then keep it playing for a short time after the lab turns off to allow for the handoff. I don't currently have any plans for this, as this mod was made as a joke, but I'm sure it's possible.