A piano tuner pleaded guilty Wednesday to sexually assaulting a Fairfield woman in her home.

Raymond Nilson, a Seymour man on probation for doing the same thing to a 12-year-old Woodbridge girl, pleaded guilty to third-degree sexual assault and second-degree unlawful restraint before Judge Frank Iannotti in Bridgeport Superior Court.

Assistant State's Attorney Tatiana Messina said she will recommend Nilson, 48, of Kathy Drive in Seymour, serve a six-year prison term when he is sentenced Nov. 3. But the judge indicated he may impose a more lenient term.

On March 9, a 43-year-old woman complained she had been sexually assaulted by Nilson, who had come to her home to tune her piano, police said.

The woman said Nilson had called her over to look at something in the piano. Police said Nilson then pinned her against the piano and began running his hands over her body.

After he was done, police said Nilson offered the woman a "discount" on the price of the tuning and left.

According to court records, Nilson was sentenced in May 2002 to a seven-year suspended term, with 10 years probation, for sexually assaulting a 12-year-old Woodbridge girl in her home.

The police report in that case states that Nilson had called the girl over while tuning her piano, wrapped his arms around her and then masturbated on her.

As a condition of his probation, he was ordered to undergo sex offender treatment.