Huntington Station?s Brittany Maier is a real-life Rain Man.

The 17-year-old is blind, severely mentally retarded and autistic ? and a composer. Maier has been playing piano since she was 5 years old and has been writing her own songs since she was 10. She has more than 20,000 songs committed to memory, learned after hearing each only a couple of times. Maier is what experts call a Prodigious Savant, one of only 20 in the nation.

Maier?s mother, Tammy, says her daughter was given only a 5 percent chance to live after being born four months premature. Tammy said she moved Brittany to New York from South Carolina a year ago to be closer to the care and opportunities her daughter needs.

Brittany has recorded a CD and has three more scheduled to come out in the next year or so. She performed before a crowd of 55,000 at Shea Stadium last Sunday on her 17th birthday, coincidentally autism awareness day for the Mets. To find out more about Brittany or to get a copy of her CD, please visit Brittany Maier and Friends Foundation.