Would a Siamese pair be calmer than one solo Siamese demanding constant human commentary?

Yes, a pair of Siamese will generally be calmer than a single one. Solo Siamese cats often become vocally demanding because they bond intensely with their human and rely on them for all social interaction. With a companion, they redirect much of that energy toward each other-grooming, playing, and chattering in their own language. You’ll still hear commentary, but it’s less persistent and urgent. The key is introducing them properly as kittens or young adults; otherwise, territorial disputes can create more noise, not less.