Liminal (2017) is a music composition written for the aerial dance performance Liminal (2017) by Danielle Garrison.
This works explores somatosensation using low bass frequencies. It features a channel for subwoofer, using low bass frequencies that activate the chest resonance. These frequencies are close in value, creating an acoustic phenomenon of beating or rhythmic interference. Given these two factors, these rhythms are felt in the chest.
The work also plays with synchrony and counterpoint with the dancers. The music synchronizes to certain dance gestures/moments while not others (many of the fast hand gestures are not synchronized). For this reason, some parts flow easily while others play with resistance.
On the technical side, the work uses granulated recordings and signals generated in Max for the low bass frequencies. The part for subwoofer uses low frequency amplitude modulation to create musical structure at different temporal scales of macro-structure, section, phrase, and rhythm.