L. Tyerman, The life and times of the Rev. Samuel Wesley (1866)
“ Is it too much to say that the marvellous musical genius of his two grandsons, Charles and Samuel Wesley, was inherited from himself? So remarkable was this talent for music that Charles surprised his father, by playing, with correctness, a tune on the harpsichord before he was three years old; while Samuel taught himself to read from Handel’s oratorios ”
