True to their usual standard of extraordinary craftsmanship and virtuosic dancing, Richard Alston Dance Company brought a mixed bill of new and old works to Sadler’s Wells. The evening’s programme included three pieces: Alston’s Roughcut, which premièred in 1990; Lie of the Land, a work by rehearsal director Martin Lawrance; and one of Alston’s newest choreographies, A Ceremony of Carols.