Welcome to the Distorted Tunes Test (DTT). Take the test in a quiet room free of distractions and background noise, because you'll need to be able to hear clearly. You must be alone, because having other people in the room could affect your test responses. We recommend that you do not use headphones/earphones/earbuds or high volume. The test takes about 10 minutes.

You will hear a number of well-known tunes. Some will be played correctly, while others will be played incorrectly (with some wrong notes). Your task is to decide whether the tunes are played correctly or incorrectly.

Here's an example to show you what to expect. Click the link below that says "Play example tune." Listen carefully. If you think the tune was played correctly, click the button labeled "Yes" for the question. If you think the tune was played incorrectly, click the button labeled "No."

Play example tune

Was tune played correctly? Yes

No

Now you're ready to begin the test. Good luck and have fun!

Tune 1

Was tune 1 played correctly? Yes

No

Tune 2

Was tune 2 played correctly? Yes

No

Tune 3

Was tune 3 played correctly? Yes

No

Tune 4

Was tune 4 played correctly? Yes

No

Tune 5

Was tune 5 played correctly? Yes

No

Tune 6

Was tune 6 played correctly? Yes

No

Tune 7

Was tune 7 played correctly? Yes

No

Tune 8

Was tune 8 played correctly? Yes

No

Tune 9

Was tune 9 played correctly? Yes

No

Tune 10

Was tune 10 played correctly? Yes

No

Tune 11

Was tune 11 played correctly? Yes

No

Tune 12

Was tune 12 played correctly? Yes

No

Tune 13

Was tune 13 played correctly? Yes

No

Tune 14

Was tune 14 played correctly? Yes

No

Tune 15

Was tune 15 played correctly? Yes

No

Tune 16

Was tune 16 played correctly? Yes

No

Tune 17

Was tune 17 played correctly? Yes

No

Tune 18

Was tune 18 played correctly? Yes

No

Tune 19

Was tune 19 played correctly? Yes

No

Tune 20

Was tune 20 played correctly? Yes

No

Tune 21

Was tune 21 played correctly? Yes

No

Tune 22

Was tune 22 played correctly? Yes

No

Tune 23

Was tune 23 played correctly? Yes

No

Tune 24

Was tune 24 played correctly? Yes

No

Tune 25

Was tune 25 played correctly? Yes

No

Tune 26

Was tune 26 played correctly? Yes

No

Distorted Tunes Test reproduced courtesy of Dennis T. Drayna, Ph.D., National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Department of Health and Human Services.