1. A method comprising: displaying a spatio-temporal graph that visually indicates one or more positions of a sound object in a range of times and indicates a state of the sound object over the range of times; enabling user adaptation of the spatio-temporal graph to change a position of the sound object in at least a portion of the range of times and/or change a state of the sound object over at least a portion of the range of times; and rendering of spatial audio output using the position and state of the sound object indicated by the adapted spatio-temporal graph.