Composition 2021.06 (Andrew Page) is forty-two minutes and forty seconds in duration - and was produced digitally using FM synthesis. The components of the composition consist of an effected sample from a composition - Call - by Andrew Page - and which contains sounds created by interference patterns. Other elements include a two-hundred-and-fifty-six-bar sinewave-based tone that increases in pitch from C4 to C5 - and a sinewave-based tone that decreases in pitch from C5 to C4. When sounded together additional inference patterns are generated - creating high levels of harmonic and timbral complexity. In addition - there is a low-frequency sound - pitched at C1 - that continues throughout the duration of the composition. An edited version of Composition 2021.06 (Andrew Page) is part of the collaborative album project - ‘Call and Responses’ - that the sound artist Andrew Page curated in 2021 - with contributions from fifty-two international composers and sound artists from around the World.