Mormon father Keith Brown was convicted of sexually abusing his three daughters, but RadarOnline.com has learned that the crimes against the trio went far beyond what the pedophile was eventually jailed for.

A newly released police report shows that the crimes against the female members of the 5 Browns piano group was much more extreme than the jury who convicted their father was made aware of because the victims were trying to protect their abuser, reported the Salt Lake City Tribune.

According to shocking police and court reports, at least one daughter was abused hundreds of times over the course of at least eight years and across state lines.

The father of The 5 Browns music group has been sentenced to 10 years to life behind bars for sexually abusing his daughters, RadarOnline.com can report.

Keith Brown, 55, pled guilty to one count of sodomy on a child and two counts of sexual abuse after assaulting his children for eight long years.

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The daughters, who are now adults, reported the abuse - which began in 1990 - to authorities in 2010 after learning of their father's plans to mentor other children.

Judge David Mortensen sentenced Brown at Utah court house saying: "I think it's obvious a home should be a refuge and a safe place, and that a parent should be a protector."

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He also branded Brown a pedophile and a danger to society, but admitted he had been given a more lenient sentence "through the consent of your victims".

The five strong piano performance group consists of two brothers and their three sisters. All of the females were abused.

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They were on tour the day their father was sentenced.

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Keith Scott Brown – the father of piano quintet The 5 Browns – pled guilty today to charges of sexually molesting his three daughters, RadarOnline.com can reveal.

The 55-year-old appeared before Judge David Mortensen in Utah and was represented by his lawyer Steven Shapiro.

COURT DOCUMENTS: Read the Criminal Charges Against Keith Scott Brown

He was charged with one count of first-degree felony sodomy upon a child, and two counts of second-degree felony sexual abuse of a child.

His daughters – Melody, 26, Deondra, 30 and Desirae, 32, – contacted the police to report the abuse because they feared for other young musicians their father was planning to manage.

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UPDATE: Keith Scott Brown made a surprise court appearance Thursday has pleaded guilty to the charges against him.

Keith Brown, the father of Utah musical act The 5 Browns, has been charged with sexually abusing his three daughters RadarOnline.com has learned.

READ: Exclusive Court Documents Here