A minor composer of the Nuremberg school, Wecker is now best remembered as one of Johann Pachelbel's first teachers.
He received his first music lessons from his father Johann, and at the age of 15 he was already allowed to play the church organ.
He spent 28 years working there, until in 1686 he got the job at the main Nuremberg parish church of the time, St. Sebald.
Wecker occupied this position until his death in 1695 and was succeeded by Johann Pachelbel.
An acclaimed teacher, Wecker was, along with Heinrich Schwemmer, an important link in the 17th century Nuremberg teacher-pupil tradition.