Ok, it's not Modern, it's Erasmian pronunciation that I was thinking of (which is closer to Modern pronunciation than to how the Earliest Christians spoke). I must have mixed up my terminology with Hebrew.
Classical pronunciation is basically reconstructed pronunciation.
Here's a short article on the matter: https://academic.logos.com/how-should-% ... ronounced/
And for good measure a wikipedia article: https://en.wikipedia.org/wiki/Pronuncia ... n_teaching
(Yes, it's on Ancient Greek, but Koine is basically Ancient Greek lite anyway.