The 9th International Baltic Sea Choir Competition's optional programme concert takes place on 19 September 2026 at the Dzintari Concert Hall Great Hall in Jūrmala. Choirs will perform their own selected 8–10 minute programme, featuring at least two works. None of the pieces may overlap with the compulsory programme, and one piece may be accompanied. This competition event offers audiences a chance to experience varied choral music prepared especially for this unique occasion. The concert is held over a single evening, so timely arrival is recommended.