London, UK. 01/02/2011. American Ballet Theatre make a return to Sadler's Wells with two programmes of pieces. the mixed bill includes the UK premieres of Alexei Ratmansky's &quot;Seven Sonatas&quot; and &quot;Everything Doesn't Happen at Once&quot; by Benjamin Millepied. Completing programme one is Twyla Tharp's &quot;Known by Heart&quot; pas de deux and George Balanchine's &quot;Duo Concertant&quot;, set to music by Igor Stravinsky. Principal Daniil Simkin in the arms of the corps. Picture credit should read: Jane Hobson
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