With Loadstone being added to the basegame as a part of v80, one feature unfortunately lost was the loading music that would play when loading into a moon, which was ideal for larger modpacks with longer loading times.
This mod restores that functionality for v80+. When loading, the vanilla elevator jingle will play from the ship's speakers as you land.
Want to replace the music with your own track? For that, i would recommend using loaforcsSoundAPI. The name of the binding you want to replace is: SpeakerAudio:LoadingMusic:LoadingMusic
See my mod here as an example, which replaces the music depending on what weather it is!
This mod should work for older versions than v80, but if you have Loadstone present, i would strongly advise disabling Loadstone's loading music in the config, or else you'll get both tracks overlapping at once!