Figure 14: Assigning a saxophone sound corresponding in pitch to the value of x. The sound is heard whenever the variable changes. The circle icon indicates that properties of the saxophone instrument will be changed each time the probe action is triggered. By default, the value of the trigger expression is used to calculated a new pitch. By double-clicking on the probe, the user can specify a different instrument or change the mapping.
B.A.Price@open.ac.uk / 19 July 94