yīn / yuè / huì / shàng / gāng / qín / jiā / yǎn / zòu / le / yì / shǒu / bā / hè / de / tuō / kǎ / tǎ音乐会上,钢琴家演奏了一首巴赫的托卡塔。At the concert, the pianist performed a toccata by Bach.