Tilde New Music Festival: Contemporary music, sound art, improvisation, and inter-disciplinary collaboration. Trace Elements I-V for prepared piano and electronics will be part of an exhibition of fixed-media sound works and the wonderful Laila Engle performs Lace Frequencies for flute and electronics. Many other new and interesting works throughout the day. The venue 'Testing Grounds' is located at 1-23 City Road, Southbank, Melbourne (just behind the Arts Centre).