The Amen Break is an approximately 6 second section of drums taken from the song “Amen, Brother”, the B-Side to the 1969 single “Color Him Father” by The Winstons. This 20 minute documentary investigates the history of the Amen drum sample, arguably four bars that changed the world:
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Here’s a database of music that has used the sample. Listen here to a BBC Radio 1 documentary on the Amen Break.