The North German Baroque Organ in the Örgryte New Church was constructed in collaboration with the North German Organ Research Project through the auspices of the Göteborg Organ Art Center (GOArt), after those of Arp Schnitger (1648-1719).
The Egger sackbuts were created in cooperation with Branimir Slokar, after replicas of models by Johann Leonard III in Ehe, Nuremburg in 1746.