Niclas Criborn from the swedish band Clockwork plays the Mellotron in it's Flute setting. This is the sound usewd on the Beatles track Strawberry fields forever.
Clockwork lead vocalist Niclas Criborn plays the Mellotron using sounds from the infamous MK II Mellotron. These are autokomp strings, cellos and violins.
An outtake from Mellodrama, the Mellotron documentary, in which Brian Kehew, author of "Recording the Beatles" talks about the very first Chamberlin keyboard invented by Harry Chamberlin in 1951.