Can Jews, Christians, and Muslims share their sacred music? The interreligious songbook Trimum, edited by Bettina Strübel, choir leader of the same-named society TRIMUM, says “yes!” Launching it as a collaborative project in 2012, an interdisciplinary team went out to search for a “Music for a Trialogue” that could be used in everyday interreligious encounters: in kindergarten and school, for intercultural initiatives, or in refugee relief. Trimum includes unison songs as well as also multi-part choral pieces. Chord symbols for instrumental accompaniment, together with multi-lingual song texts, are also useful, practical musical aids.