Music Two

When we're talking about music one, the three round scheme, the setup, key setup is still a single round. It's still like everyone kind of creates their own public key and just publishes to the other participant or even to some outside party. And you can still take all of these individual public keys and there is a public algorithm that even an outside party can combine the individual public keys to an aggregate public key that then represents the entire group. This is still true for all of the music variants, which is a pretty useful property.