Joost Flach originates from the Netherlands where he graduated from the Sweelinck Conservatory of Amasterdam. His teachers were Carlo Ravelli and Han de Vries. Since 1984 he lives in S.E.Asia having professional postings in the Singapore Symphony Orchestra, Bangkok Symphony Orchestra and the Malaysian Philharmonic Orchestra. As an educator he has been involved in community and school wind orchestras in Yogyakarta, Singapore, Kuala Lumpur, Penang and Bangkok. He is currently Head of Winds at the NAFA School of Music.