The main menu theme.
Binding of Isaac Revelations is a mod for Binding of Isaac Afterbirth +, you can play it here: steamcommunity.com/sharedfiles/fil…/?id=1536643474
Full OST: nvnmusic.bandcamp.com/album/binding-…-cha…
Do you know how long it took for me to find this
My favourite OST in Chapter 2