This work involved acoustic analysis, psychoacoustic studies, and perception testing, focusing on the relationship between instrument design, playing techniques, and tonal qualities.

His study, *"The 'Sound of Silence' in a Neonatal Intensive Care Unit,"* analyzed how sounds such as speech and music are transmitted within incubators and their impact on preterm infants.

The research highlighted the acoustic properties of incubators, identifying frequencies amplified or attenuated within the enclosure, and suggested noise-reduction strategies to protect vulnerable neonates.

"*[10] Bertsch began playing the trumpet at age 7 and continued his studies with renowned teachers, including Györky Ottlakan, Manfred Stoppacher, Carole Dawn Reinhart, and Fred Mills, as well as attending masterclasses with Thomas Gansch.

During his military service, he was a member of the Stabsmusikkorps der deutschen Bundeswehr, performing at state receptions for figures like Ronald Reagan and Erich Honecker.