Acclaimed pianist and conductor Mikhail Pletnev flew to Moscow on Thursday proclaiming his innocence after being charged in Thailand with raping a teenage boy.
Thai authorities arrested Pletnev on Monday but allowed him to leave the country on Thursday on condition that he return following a concert appearance in Europe.
Pletnev told reporters after he arrived at Domodedovo Airport that he would honor those terms.
"After the completion of my performance, I intend to return there again and see this matter to its conclusion. I hope that Thai justice and the court system will be equal to the occasion," he said.
"I can say directly that I committed no kind of crime," he said.
Thai police official Omsin Sukkanka said he expected Pletnev to return after the concert "given that he is famous and that he claims that he is innocent."
Pletnev is scheduled to conduct in Ohrid, Macedonia, on July 12, and his next planned appearance after that is in August.
Pletnev has said the charges were the result of a misunderstanding. Russian media reported that Pletnev planned to return to Thailand on July 18.
Pletnev was released on 300,000 baht ($9,000) bail following a court appearance in Pattaya on Tuesday and ordered to report to the court every 12 days.
The musician could face up to 20 years in jail and a fine of 40,000 baht ($1,200) if found guilty.
Pletnev founded the Russian National Orchestra, the country's first independent orchestra, and was its first principal conductor, according to the orchestra's web site. Today, he is the artistic director.
The granting of bail to Pletnev — and allowing him to leave the country — while he faces such serious charges was unexpected, though not unprecedented. Both police and court officials declined to directly address the issue.
"Why the judge let [Pletnev] go is a question that has struck in many of our hearts. There are some questions that need to be answered," said Supagon Noja of the Child Protection and Development Center.
Thailand has long been known as a haven for sex tourists and pedophiles because of widespread prostitution and lax law enforcement. Authorities have voiced intentions to crack down on such offenses, and Pletnev's arrest is one of the most prominent cases to date.
Police said the musician was detained following a tip from Traipob Boonmasong, a Thai national who was charged with child rape for purported involvement in a child prostitution ring.
Omsin said evidence in the case included a statement from a 14-year-old boy who said Pletnev had raped him twice at Traipob's home.
He said Pletnev had appeared in some photographs with the boy, but no suspicious activity was depicted.
Internationally known as a pianist, conductor and composer, Pletnev won a 2005 Grammy for an arrangement of Prokofiev's "Cinderella," which was recorded with him and Martha Argerich on piano.
Pletnev owns a restaurant and the Euro Club — which includes a swimming pool and badminton courts — in Pattaya, where he reportedly lives in a palatial compound.
The resort town is known for its raucous nightlife, playing host to foreign criminal gangs and police suspected of corruption. It is also a major destination for Russian tourists.
The newspaper Pattaya Daily News said Pletnev has lived in Thailand for the past 15 years. It quoted him as saying in an interview that Traipob helped care for his properties when he was on the road, and that he had no knowledge about the man's supposed involvement in a child-sex ring.