for their support and comments. Furthermore, he would like to thank several people who helped him collecting data: Machiel Karels (Psalmboek.nl); Maaike Oosten, Anje de Heer and the Steunpunt Liturgie of the Gereformeerde Kerken vrijgemaakt (GKv); H.N. Werkman; and all the ministers, organ players and church members that collaborated in this research. Special thanks he owes to the second and third author who helped him restructure and improve this paper. No part of this paper is published earlier in any form, except for a presentation at Utrecht University: Schotanus, Y.P. (2016-11-24) Colloquium in the Musicologies, Interaction Between Musical and Poetic Form Affects Song Popularity: The Case of the Genevan Psalter. Utrecht. Yke Schotanus (The Hague, 1963) is PhD candidate at Utrecht University, working with a NWO PhD scholarship for teachers. Furthermore he is a secondary-school teacher Dutch Language and Literature, a writing coach, and a singer-songwriter. Hendrik Vincent Koops (Oss, 1984) is a PhD candidate in computer science at the Utrecht University, focusing on computationally modeling harmonic variation and subjectivity. Judy Reed Edworthy