It's only one chord different from the Antico (Opening chord Romanesca: III ; Opening chord Antico: i) and often appears as an Antico alternate in many sources. Compare the Dalza with the Valderabano Romanesca for similarity. Libro 7 f97. Apparently the Romanesca predates the Antico, at least in printed sources. Sean ps, I took the liberty of excising the copied info at the bottom of our emails.
-- To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html