Niels Adema was born in Hilversum in 1986. From the age of six he received organ lessons from his father Ton Adema. He then received lessons from Toon Hagen in the Grote of Sint Michaëlskerk in Zwolle. Niels studied organ and church music with Reitze Smits at the HKU. He has won prizes in various organ competitions. He also works as a music teacher at the Van Lodenstein College in Kesteren and Barneveld.
From the age of fifteen he has also been an organist at the Reformed Church in Kampen. As a conductor and accompanist he is active in several choirs.