This video shows a sound installation, 'Medicatio' (2013) and its companion piece, 'Chant' (2013) by N.G. Brown. 'Medicatio' allows participants to control the live sound of an automated monochord by vocalizing the same pitch.
'Chant' is a collection of thirty-nine spectrograms that investigates the formation of random vowels over the course of several weeks.
These two works featured in N.G. Brown's solo exhibition, 'From Birdsong to Light', at Hungate Medieval Art, Norwich, May 25 - June 16, 2013. frombirdsongtolight.co.uk