Complex sentence: In June 2013, the Japan Cultural Institute in Rome, Italy invited him to give a speech about Japanese contemporary music at symposium and his piece called Hidden instincts for piano solo was performed by Aki Takahashi at the concert.
Split into simpler sentences: In June 2013, the Japan Cultural Institute in Rome, Italy invited him to talk about Japanese contemporary music at a symposium. His piece called "Hidden instincts for piano solo" was performed by Aki Takahashi at the concert.