Lyrebird is a scoreplayer that generates a visualisation of the sonic features of a recorded environment, as a form of score/improvisation guide. It is a “near real-time” work, in that percussionist Vanessa Tomlinson makes a new field recording and collects relevant objects to play for each performance. The work’s “site specific” nature was inspired both by Vanessa the improviser, and by tales of the epic outback trek she took with her family in the previous year. The score she reads is an alternate form of spectrogram that displays principal sonic features of the recording as shapes, and colours them according to their timbral properties. The visualisation scrolls right to left across the screen and the source recording is delayed, so that is heard as the corresponding images in the “score” reaches the left of the screen. This process is aimed at creating openness in the notation by foregrounding elements of timbre and texture rather than pitch or rhythm, providing a space that assists sonic imagination to guide an improvisation.