Got it. I was aware of the source of pesukim, but unaware it was read to apply only to shir hashirim.
Sam: What is the sevara on that? The medrash says “asauni banayich k’min zemer” (MB’s language) which would seem to apply to any passuk. I figure maybe it could be read to mean only if it isn’t being sung as inspiration davka of the passuk. But why wouldn’t that apply to shir hashirim also?
(Also, should it apply to other places similar to shir hashirim? How about eishes chayil?)