"Then Play On" is the third studio album by British blues band "Fleetwood Mac". The album was released on September 19, 1969, after the band achieved a surprising success in the pop charts. Unlike the band's first two classic blues albums, "Then Play On" is characterized by extensive stylistic diversity. It was the last album with band founder Peter Green and the first album with guitarist Danny Kirwan. "Then Play On" gave Fleetwood Mac their fourth consecutive hit in the Top 20, with the album reaching #6 in the UK Album Chart