it's possible there is a listing, which instruments are current and that happen to be just relicts from outdated instances to save end users from annoyance: "Ahau was the katun if they Established the cah of Mayapan; https://junaidrqtl059728.blogsvila.com/30035908/what-is-maya-formerly-known-as-paymaya-and-how-does-it-work-no-further-a-mystery