This installation consists of over 5.4 metres of tubing sculpted, suspended and activated electronically to emit a 17Hz infrasonic frequency said to be the 'dream' frequency. Imponderable Sound is sonic art that is inaudible and is composed by using only infrasonic frequencies or infrasound. Infrasound (sound that operates below the average hearing spectrum) is a vibration that can be detected through the body via the bones, skin and internal organs which is then interpreted by the brain in the same way that music is interpreted when perceived by the ears, known as Haptic Perception. This means that by using infrasound as a means of physical vibration, the body can be affected through its tactile sensory receptors to add a new dimension to Sonic Art, that of touch.