View related articles View Crossmark data 1 This moment is traced in 'Ancestors' (3:30), a short edited video by Ben Spatz with Nazlıhan Eda Erçin and Agnieszka Mendel, http://bit.ly/2HQKjtB (fig. 1). 2 This moment is traced in the final section of 'Diaspora' (Spatz et al. 2018); also available at http://bit.ly/2V2FOyK (fig. 2). 3 This moment is traced in 'Działoszyce', a video essay by Nazlıhan Eda Erçin with Agnieszka Mendel and Ben Spatz. 'Działoszyce' is a work in progress, which has been shown at several public events but is not yet available online. The book is Hage (2017) (fig. 3). 4 The Judaica project was supported by a Leadership Fellow award from the UK Arts and Humanities Research Council (2016-18). This article is indebted to Nazlıhan Eda Erçin and Agnieszka Mendel, who were full-time researchers on the project from May to October 2017; as well as to anthropologist and performer Caroline Gatt and other collaborators. The question 'Who owns a song?' was proposed by Erçin; she has also written about the project (Erçin 2018). Open access for this article is provided by University of Huddersfield. Thanks to Santiago Slabodsky for comments on an earlier draft. 5 My decision to lowercase 'jewish' throughout this article is explained below.