For Children's Choir and Piano . Par PART ARVO. ‘I went to nursery school every day until the end of secondary school!’ Arvo Pärt says and pauses, staring slyly at his listener. ‘My mother worked at a nursery school in Rakvere, and I always went to visit her after my lessons.’ There, the future composer often sat at the piano and played or improvised for his little friends. Arvo Pärt is a composer…