Yan Jun:
time assignment for layer B
voice on layer A
field recording with fingers and steps on layer B
Zhu Wenbo:
time assignment for layer A
snare drum, digital piano, upright piano, clarinet, audio signal generator on layer A
printer, cassette duplicator, scanner, audio signal generator, taped mandolin on layer B
Yan Jun: recorded in Beijing, Feb 2021
Zhu Wenbo: recorded in Qingdao and Beijing, Sept 2020 – Feb 2021