china in a couple of minutes. wind gusts more than 45 miles an hour swept the wall of dust through this northwestern chinese city.ped to a little under a mile before the storm moved on with no major damage. >>> from india, a royal moment. the duke and duchess sitting for a photo on the bench at the taj mahal on the final day of the couple's tour of that country. this is the same bench where william's mother princess diana posed 24 years ago for this iconic image. >>> back in a moment with the sound of music. make it mariachi. >>> finally tonight, almost everyone will agree on the value of music in our schools, even though music programs often fall victim to budget cuts. in one school district in southern california, music, mariachi, is alive and well and teaching many about their history. >> how many do you have? >> reporter: this fifth grader studies the basics. then after class, he shifts from arithmetic to rhythm. he is part of a program that teaches mariachi to kids in elementary school. >> i have wanted to try something new. which would be mariachi. >> reporter: it's a tradition in the school district. this