Since the outbreak of the COVID-19 pandemic. singing activities for children and young people have been strictly regulated with far-reaching consequences for music education in schools and ensemble and choir singing in some places. This is also due to the fact. that there has been no reliable data available on aerosol emissions from adolescents speaking. https://zhudssizymoii.timeblog.net/70687942/nomenclatural-benchmarking-the-roles-of-digital-typification-and-telemicroscopy