 When Nannerl was seven her father began to teach her to play the harpsichord, with Wolfgang looking on; according to Nannerl's own account "the boy immediately showed his extraordinary, God-given talent.He often spent long periods at the clavier, picking out thirds, and his pleasure showed that they sounded good to him...When he was five years old he was composing little pieces which he would play to his father who would write them down".