I really hate to give my feedback but Traveloka keeps emailing for a response and here you will get it:
YoYo Ma is a professional musician who delivers solid performance. Much is appreciated for the effort to introduce Bach into Indonesia.
There is a terrible experience at reception due to the under-efficiency of check-in. The ticket price is NOT worth the time wasted before the show.
The audience is a lousy one, speaking, coughing, filming, walking at random moment of the concert.