I have completed the project and it fails the 6th and 7th tests so it says it passes only 7 out of 8 tests.
Error message is:
>6. When I press the trigger key associated with each .drum-pad, the audio clip contained in its child <audio> element should be triggered (e.g. pressing the Q key should trigger the drum pad which contains the string "Q", pressing the W key should trigger the drum pad which contains the string "W", etc.).
it is the same message for the 7th test.
Link to project: https://codepen.io/frentric/pen/JxaYLR