https://www.pinball-technology.com/produits/nb2/
The NB2 board replaces the MPU and S/T board. You can program whatever sounds you want and add a jukebox. I have one for Medusa and just ordered another for Fathom. Medusa plays music from Clash of the Titans, Game or Thrones, etc. I’m already building my playlist for Fathom. The board is super awesome.