He began conducting the Holland Boys Choir in 1984 ; currently it has 80 singers .
Bach 's St Matthew Passion ( BWV 244 ) during the Easter season , and summer concerts in July and August .
Bach began conducting the Holland Boys Choir in 1984 ; currently it has 80 singers .
Bach 's St Matthew Passion ( BWV 244 ) during the Easter season , and summer concerts in July and August .