During the development of the Messiah Cathedral, he contributed to the design of the Reformed Millennium Center of Indonesia (RMCI) and helped design some of other church buildings in Indonesia. In 2009, he opened the Aula Simfonia Jakarta concert hall in the RMCI; it holds 1,200 seats. He served as the music director for the Jakarta Simfonia Orchestra, along with artistic consultant Jahja Ling and Billy Kristanto. In 2011, he opened the Galeria Sophilia in the RMCI to display some of his and church members antiques for education.
