The description of 14 fragments from a late 14^th-century Transylvanian antiphonal kept in the library of the Franciscan convent in Güssing (Austria) were created and became available online as a result of the research of Gabriella Gilányi, member of our research team (http://fragmenta.zti.hu/forrasok/gussing-bibliothek-des-franziskanerklosters/). The codicological, music-paleographical and melodic analysis of the fragment will be published alongside the quondam codex’ reconstruction as the first volume of the new bilingual publication series of the HAS Momentum – Digital Music Fragmentology Research Group (Resonemus pariter. Műhelytanulmányok a középkori zenetörténethez / Studies in medieval music history).