to think about what decisions I'm going to make on the fly as that Beethoven text is running in time through my head and I'm trying to figure out what kinds of transformations I'm going to make to it.
頭の中でベートーベンの楽譜が鳴り続ける間 どう弾くかをその場で決めなくてはいけないし どのように変化させていくかを 考え出さなくてはいけない