Little is known about his music education after the death of his father; his music teachers may have included Jan Willemszoon Lossy, a little-known countertenor and shawm player at Haarlem, and/or Cornelis Boskoop, Sweelinck's father's successor at the Oude Kerk.
Lidet er kendt om hans musikuddannelse efter hans faders død. hans musiklærere kan have inkluderet Jan Willemszoon Lossy, en lille kendt kontratenor og skalmeje-spiller ved Haarlem, og/eller Cornelis Boskoop, Sweelincks faders efterfølger ved Oude Kerk.