Maša po starinski is a festival of old church folk singing that takes place every year at the end of August in the Istrian County, in Sveti Petar u Šumi. This paper presents the traditional manifestation Maša po starinski in the period from 2009 to 2019. The participants who took part in the show and the repertoire with which they performed are presented. The goal of the event is to preserve Glagolitic singing. In order to preserve data, the paper presents a table that describes which choirs (not necessarily from the area of Istria) participated, in which year and the repertoire with which they performed. During the observed years, the parish choir of St. Peter and Paul performed the most times (8 times), followed by the choir of the parish of St. Agnes and the Lavanda choir (6 times), followed by the Mixed Church Choir of St. Michael (5 times), and the Jažulica Vocal Group (4 times). It is worth highlighting the participation of a large number of young singers who are a guarantee that Glagolitic singing will not be forgotten.