Microphones are used to capture the acoustic sound from the piano, the Max patches are used to analyse the acoustic sound. The resulting data streams are reporting pitch information, loudness, density and so forth, and, combined with some more direct controls, evoke a mixture of digital audio processes and allow adjustments of i.e. the overall volume and degree of processes. All processes are happening within Max/MSP in real-time, so the entire computer process is dependent on a continuous acoustic impetus, although in the course of a performance, accumulative processes are possible which might throw back material which occurred much earlier in the performance.