The performer’s relationship to Lyrebird in the example below is the most “score-like”, in that the pitch, rhythmic and dynamic contours of the bullfrog croaks from the field recording are adhered to with a great deal of precision. The task is perhaps simplified because the pitch range of the croaks is limited to about 3 semitones, however the spectrogram indicates that this method of synchronisation of the recording and the performance by pianist and composer Michael Terren is effective in this instance.