This directory contains a pdf file with details of F0 variance from two previous studies in which I have been involved, one on Yoruba and one on Dutch. The document is intended as supplementary materials to accompany my commentary article in the Journal of Language Evolution (2016). Version 1 of this document was posted on 17 February 2016. Version 2 will contain similar information on other similar studies of European languages, including at least one of my studies on English. I expect to post Version 2 by mid-March 2016.