Piper Gordon Walker is being investigated over school abuse claim
Gordon Walker was suspended from his role at St Columba's School in Kilmacolm, Renfrewshire, after the 11-year-old's parents contacted staff.
The 49-year-old is one of two teachers at the £11,000-a-year school to be suspended over unrelated sex abuse allegations within a matter of days.
Head of physics Iain Weir, 56, was reported to the Procurator Fiscal in connection with the alleged historical sexual abuse of a 15-year-old girl.
Mr Walker is one of two teachers at the school to be suspended over unrelated sex abuse claims
It is understood the claim dates back more than 20 years and did not occur at the school, where Weir has taught for 11 years.
I was informed about the second alleged incident on Saturday and, as far as I understand, that's when the police acted
David Girdwood – St Columba's rector
Last night, Police Scotland confirmed that Weir – who is due to retire this year – has been reported to the Procurator Fiscal.
St Columba's rector David Girdwood said it had been a "horrendous" week for the school and stressed that the cases were "entirely unrelated matters".
He also confirmed that Walker was "suspended immediately" and that he had called in the police himself.
Walker was commissioned to compose a special pipe march to mark the Queen's diamond jubilee in 2012
Mr Girdwood said: "That alleged incident allegedly occurred at St Columba's.
"I was informed about the second alleged incident on Saturday and, as far as I understand, that's when the police acted. "Iain Weir, our head of physics, was suspended and has not been back in school since then."
Walker, from Moscow in Ayrshire, is regarded by many as the world's best solo piper and one of the best ever.
He was commissioned by the Braemar Royal Highland Society to compose a special pipe march to mark the Queen's diamond jubilee in 2012. The tune was played for the first time for Her Majesty in September that year at the Braemar Gathering, and a framed copy now hangs in Balmoral Castle..
He has taught at the school for the past 12 years and is employed full-time with piping offered as an extra subject for pupils.
A Police Scotland spokeswoman said: "We can confirm that a complaint has been received regarding a sexual assault on an 11-year-old girl. Inquires are ongoing and it would be inappropriate to comment further."
Commenting on the other incident, she added: "A 56-year-old man has been reported to the Procurator Fiscal in connection with non-recent alleged sexual abuse of a 15-year-old girl."
Last night Mr Walker refused to discuss the allegation, saying: "I've been advised not to comment."
Meanwhile, a retired PE teacher is facing claims he sexually assaulted two 14-year-old girls at Dalziel High School in Motherwell and molested a girl, 10, in a church in his home town of Strathaven, Lanarkshire.
Bruce Rankin, 57, is due to appear at Hamilton Sheriff Court later this month. Incidents are said to have taken place between December 2008 and June 2014 at various addresses in Strathaven, Motherwell and Glasgow.