This text is the introduction of the special issue “Rhythm in social interaction” edited by Chiara Bassetti and Emanuele Bottazzi in Etnografia e Ricerca Qualitativa, vol. 8, n. 3, December 2015. We thank Chiara Bassetti, Emanuele Bottazzi and the journal Etnografia e Ricerca Qualitativa for the permission to republish it. But, friend, when you grasp the number and nature of the intervals of sound, from high to low, and the boundaries of those intervals, and how many scales arise from them, (...) - Anthropologie – Nouvel article. (shrink)