Then Play On is the third studio album by the British blues rock band Fleetwood Mac, released on 19 September 1969. It was the first of their original albums to feature Danny Kirwan (although he is also listed on two tracks on the earlier compilation The Pious Bird of Good Omen) and the last with Peter Green. Jeremy Spencer did not feature on the album apart from "a couple of piano things" (according to Mick Fleetwood in Q magazine in 1990).[citation needed] The album offered a broader stylistic range than the straightforward electric blues of the group's first two albums, displaying elements of folk rock, hard rock, art rock and psychedelia. The album reached No. 6 on the UK Albums Chart, becoming the band's fourth Top 20 LP in a row, as well as their third album to reach the Top 10. The album's title, Then Play On, is taken from the opening line of William Shakespeare's play Twelfth Night—"If music be the food of love, play on".

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