Researchers had students listen to brief audio clips of popular songs for only four-tenths of a second. Most participants were able to recognize the artist and song more than percent of the time.

50%

Explanation:

Most researchers have done various studies or research on a person's meditation. It depends entirely on the listening ability of the person who understands the specific audio. However, sound takes another part to reach a person’s auditory nerves and that person responds to it. A person notices is that after a few minutes there is a tendency to overreact to that particular scenario.  so in given competitors were able to identify the song and artist by more than 50%.