The Opening Concert of the 9th International Baltic Sea Choir Competition is a choral music concert in Jūrmala, at the Jūrmala Dubulti Evangelical Lutheran Church on 18 September 2026. This concert, held at Latvia's largest Art Nouveau masonry church, introduces audiences to all competition participants. Each choir performs music reflecting their nation’s musical traditions and character. The performances in this opening concert are not evaluated and do not influence the competition results, creating a relaxed and celebratory atmosphere for all attendees.