Sightread (verb)

To read and play a piece of music at sight, or for the first time, without prior practice or rehearsal.

Origin:

From sight + read.

Examples:

1. He sightread the piano piece perfectly.
2. She was able to sightread the sheet music.
3. The musician sightread the score flawlessly.
4. The pianist sightread the difficult piece with ease.
5. The singer sightread the song and performed it perfectly.