Bangladesh Shilpakala Academy (BSA) on Friday organised 'Sadhu Songo', musical evening featuring bauls, commemorating mystic bard Lalon Shah's tradition of getting Baul singers together on the night of the Dol Purnima. Artistes of BSA, Kushtia's Lalon Academy, as well as reputed Bauls performed songs at the event, held at the open premises of Shilpakala Academy.