One morning a few months ago, when he turned on his mobile phone and WeChat popped up, his inspiration was born.
Probably, the first thing most people do when they rise in the morning is to get on to social media on their cellphones. Tan is no exception to the rule with 7 million fans on Tencent's WeChat and 2.8 million fans on Sina Weibo. The composer shares his music and thoughts on WeChat every day.
While advocating the use of technology, Tan says that he believes smartphones play a key role in building ties between artists and audiences. "We classical musicians should not complain about losing audiences without making attempts to engage with them."
As a result of his efforts to modernize the performing arts, he created the Long Li Ge Long: A Symphonic Poem with Mobiles and Audience Chant.
Ahead of the concert, Tan released his own chanting of "long li ge long" over 41 seconds on his WeChat account.
During the two concerts, after conducting the orchestra to play the first part, a symphonic rearranged Long Li Ge Long, Tan turned to the audience and showed his open palm with five fingers stretched out.
After seeing the sign, the audience - as if on cue - clicked on WeChat to play Tan's pre-concert recording. The single tune, playing from hundreds of mobile phones, broke into a spell-binding chant to fill the concert halls in Beijing and Shanghai.
After the mobile chant was over, Tan encouraged the audience to chant together with members of the orchestra.
"It sounds like an ancient ritual in the modern era," says a young male student from the Tsinghua University who watched the concert in Beijing. "There is only one simple tune, but the variations were magical and so powerful that it made me very excited."
Tan says that the tune is ancient while the medium is modern. He wants to take people on a trip through ancient times with such ritualistic performances.
"I'm often criticized for being a maverick composer. No, I'm not. I'm just hungry for new sounds and forms," he says.
"An artist must push boundaries. People might have felt strange when Beethoven added a choir into his Ninth Symphony in 1824. It was the first time that human voices were used in a symphony (of instruments)."