From Surgipelago, the Beach Surgery encyclopedia
Sangat Frequency—The Five Voices
This article is about the vocal ensemble installation. For the thematically related collection, see Sangthi Vak—The Five Voices (2019). For Sikh theological context, see sangat (concept).
A participatory vocal ensemble work drawing on sangat (Sikh theological concept of congregation and collective witnessing) and North Indian classical vocal traditions, performed in rotating residencies at the Broken Hill installation. Five singers—typically two soprano, one mezzo, one tenor, one bass—perform interlocking ragas in heterophony and canon, each voice a separate thread in conversation. No words are sung; instead, vocalists produce pure vowel sounds derived from kirtan and raag practice, creating a composition of breath and harmonic resonance. The singers are tuned to the human spine's own frequency (high G for female voices, as described in the novel), layering their voices beneath a binaural ambient track that reproduces the Kármán-line resonance. The theological frame is explicit: sangat as an antidote to isolation; five voices as a model of multiplicity-within-unity. The work runs uninterrupted, designed for the seventh station pavilion at dusk, with participants sitting in the leather spiral from The Catch above. Since 2024, rotating residencies have made this the sonic and devotional centerpiece of the Broken Hill calendar, drawing participants and listeners across South Asia and Australia.