sentences:  From 1665–1666 and 1668–1669 he was a boy member of the court orchestra conducted by Daniel Danielis (1635-1696) of Duke Gustav Adolph of Mecklenburg-Güstrow.He was a bass singer at the Danish court music ensemble in Copenhagen in 1669 and in June 1670 moved to the Swedish court orchestra under Gustaf Düben the elder (ca.1628-1690), a position he held until June 1679, having applied unsuccessfully for the position of choirmaster of St. John's in Hamburg in 1674.