sightread
/ˈsaɪtˌrid/
verb
- To read and perform (music, text, or other material) at first sight, without prior preparation or practice.
- In the audition, the actor had to sightread a scene from a play he had never seen before.
- The pianist could sightread even the most complex pieces of sheet music.
- She practiced sightreading every day to improve her musical skills.