Joost Flach started playing the oboe in the municipality band of his native town in The Netherlands during his youth and has been actively performing since. During his years at the national service, he served as an oboe player in its wind orchestra Johan Willem Friso Kapel.
He has been residing in Southeast Asia upon his graduation from the Sweelinck Conservatory of Music in Amsterdam and has worked as an oboist in several orchestras in the region, namely, the Malaysian Philharmonic Orchestra (16 years), Singapore Symphony Orchestra (6 years), Bangkok Symphony Orchestra (2 years) and Kuala Lumpur Symphony Orchestra (1 year).
Besides being a professional oboist, Joost also worked as a lecturer at the Institut Seni Indonesia Yogyakarta, as a project officer of the ECA-centre in Singapore and as a conductor of several school bands in Singapore, such as Victoria Junior College, the Teacher Band of the ECA-centre and Singapore Wind Symphony.
Currently, Joost is the Head of Winds at NAFA School of Music where he lectures on oboe and conducting, and coaches the NAFA Wind Orchestra and several wind ensembles.
Over the years, he has built an extensive and tasteful library of wind music containing Western classical compositions and commissioned scores from Southeast Asian composers.