[mhh__]

As tudorw alludes to, social engineering: The only way to do that would be to convince people - on the assumption that their society could last 55 million years - to look after it and ensure that some kind of Ship of Theseus style Toto Gig just by having been replaced everytime it breaks.

That or robots...

[jharger]

This sounds like a good basis for a sci-fi short story about a religion that centers around a device that continually plays the sounds of their gods. They have been maintaining it for millions of years, even though they can't understand what the message is anymore...