Tchaikovsky asks the whole orchestra to play ‘with desire and passion’ in his romantic Fifth Symphony; Anna Clyne creates a vision of music as a free spirit, running through the night; and Mozart relaxes with friends in a concerto that reveals him at his graceful, brilliant best. There’s a lot to enjoy in tonight’s concert, and with Elim Chan conducting and Scotland’s foremost living pianist standing in for Amadeus himself, every note should go exactly where it belongs – straight to the heart.