When a schoolboy in Glasgow, Marshall Walker became addicted to the music of Sibelius. In 1996 he made a pilgrimage to Finland, visiting places of special significance to the composer, his birthplace in H meenlinna, the villa 'Ainola' where he lived for over 50 years, the forests and lakes near Koli in the Karelia. Back home in New Zealand Walker began to write Sibelius a thank-you letter for a lifetime's companionship. Walker tells Sibelius how his...