Brain injuries can result in “acquired savant syndrome,” in which ordinary people develop remarkable skills after suffering head trauma:
“It would be weeks before the full impact of Amato’s head trauma became apparent: 35 percent hearing loss in one ear, headaches, memory loss. But the most dramatic consequence appeared just four days after his accident. Amato awoke hazy after near-continuous sleep and headed over to Sturm’s house. As the two pals sat chatting in Sturm’s makeshift music studio, Amato spotted a cheap electric keyboard.
“Without thinking, he rose from his chair and sat in front of it. He had never played the piano—never had the slightest inclination to. Now his fingers seemed to find the keys by instinct and, to his astonishment, ripple across them. His right hand started low, climbing in lyrical chains of triads, skipping across melodic intervals and arpeggios, landing on the high notes, then starting low again and building back up. His left hand followed close behind, laying down bass, picking out harmony. Amato sped up, slowed down, let pensive tones hang in the air, then resolved them into rich chords as if he had been playing for years. When Amato finally looked up, Sturm’s eyes were filled with tears.”