sight-read

US /ˈsaɪt.riːd/
UK /ˈsaɪt.riːd/
"sight-read" picture
1.

视奏, 即兴演奏

to read and perform (music) at sight, without previous practice

:
The pianist was able to sight-read the complex score effortlessly.
这位钢琴家能够毫不费力地视奏复杂的乐谱。
It takes years of practice to be able to sight-read well.
要能很好地视奏需要多年的练习。