Active as a speaker in various seminars and workshops on church music and music in national forums and in various regions in Indonesia, including Jakarta, West Java, Central Java, East Java, Central Kalimantan, South Kalimantan, South Sulawesi, Bali, NTT, Ambon, Papua, etc.

Choir Trainers at Petra Christian University and in various church in Jogyakarta, Surabaya, and later in Jayapura established & trained the Wakhu Bhim Choir (Adults, Teens & Children)

Guest Consultants and Trainers for various choirs from various regions following the International competition (Balikpapan and Manado), National level (East Java, Central Kalimantan, Papua) and Provincial Level (various districts in Papua and West Papua)

East Java Province LPPD members and coach of the East Java Pesparawi team (2000-2005) and Papua Province LPPD members in training (2010 – present)

Member of East Java BSMI in 2000-2005 & Chairperson of Student Pesparawi Organization Competition in UK Petra, Surabaya.

Juries in various vocal and choir competitions in various regions in Indonesia (regional, provincial, national level) and Juries for International Competition (Asia Pasific Choir Games in Manado) Member of the World Choir Olympic Council (Indonesian representative)