Exceptional Eidetic Imagery is often referred to as a “photo graphic memory”.
In this way he had been able to gain some control over the eidetic imagery process.
Some adults can even read a telephone book and re-read from their imagery the names from any page. This skill does not equate with intelligence, however, since many who do this are retarded.
In the NOTES, for example is a short excerpt of a boy (a man now) who was retarded and blind, but who has the ability not only to retain long streams of speech he has heard, but also to play (imitate) on a piano complex songs which he has heard only once.
What's even more intriguing is that he has never had formal piano lessons. He apparently has rich neural connections between his auditory eidetic imagery processes and the spatial and motor areas of the brain.
NOTES: Hear Leslie repeat a tune on the piano.