Talk:4edo

4edo is the first edo that's a zeta peak, but not a zeta integer peak. Is the actual peak nearby which improves on 3edo achieved by stretching or compressing the octave, and by how much? I'd like to add something on that into the main page, but need to know which direction is more optimal first. --Yourmusic Productions (talk) 12:43, 9 November 2021 (UTC)

See The Riemann zeta function and tuning #Optimal Octave Stretch. The 4 equal temperament is optimal around 3.90, which implies positive stretch. FloraC (talk) 14:33, 9 November 2021 (UTC)