Though he never had any formal training, he was blessed with a remarkable memory, and his musical knowledge was already considerable by the time he made his first professional recordings aged 19 in 1954.
Meskipun ia tak pernah meraih pelatihan formal apapun, ia memiliki ingatan yang kuat, dan pengetahuan musiknya telah dianggap pada masa ia membuat rekaman-rekaman profesional pertamanya pada 1954 di usia 19 tahun.