Rully Shabara (Indonesia) leads a public choir using structured improvisation and freeform expression.

BlackKajiXtra: Nusasonic is a special two-day programme on 20–21 July 2019 in Singapore, with panels and workshop in the day, and concerts at night. The workshop will be held on Friday, 19 July, where Rully Shabara of Setabuhan will form a public choir, Cari Padu, which comments on human pursuits and governance of social structures. The choir, led by Shabara, will learn vocalisation exercises and collectively devise a work that will be performed on the second day of the Nusasonic programme.