He gave the last concerto performance of the 20th century in the Royal Albert Hall when he played Gershwin's Rhapsody in Blue at the 'Millennium Proms' with the BBC Concert Orchestra under Christopher Warren-Green.

His overseas engagements have included recitals in the U.S., Scandinavia and South Africa, as well as tours of the Soviet Union, Germany, Belgium, the Netherlands, and the Far East.

During the 1997–98 season he undertook a series of fifty Chopin recitals featuring the four Ballades in aid of the Marie Curie Cancer Fund's Golden Jubilee.

Broadcasts include recitals, concertos and chamber music for the BBC as well as Classic FM, and recordings of Russian repertoire for Dutch and Belarusian television.

McLachlan premiered Jeremy Thurlow's piano concerto,[4] and has given first performances of works by other composers, including Ronald Stevenson, Charles Camilleri, Michael Parkin, and Beethoven.