Why is the barren mountain of music called the barren mountain of music?

There is a barren hill with no vegetation all year round in Sunaba, Mexico. Strange to say, it attracts hundreds of tourists every windy day. Because there are thousands of stereos on the mountain, strange noises come and go, scaring some birds away from the hillside all day. For hundreds of years, there have been many mysterious legends about this "grotesque" barren mountain among Mexicans here. Visitors climb here and hear mellow "saxophone" pipes, sometimes accompanied by fierce drums; Walking into the valley, you can listen to a sad piano; Climbing halfway up the mountain, you can hear a burst of relaxed and pleasant guitar sound. Because there is a cemetery halfway up the mountain, the local natives think it is the "soul" of the dead in the cemetery singing. In view of this, not long ago, the Mexican government specially organized a group of geologists to inspect this barren mountain for a month, and finally unveiled the mystery of this "music mountain". According to the landform on the mountain, scientists found that this barren mountain turned out to be an extinct volcano. Hundreds of years ago, frequent volcanic eruptions and magma ejected from the top of the mountain filled the mountain with caves and cracks of different sizes and depths. When the wind blows the air and passes through these caves and crevices, it will make sounds with different tones, different heights and resonances, and turn the sounds into beautiful and mysterious music. Therefore, music is different everywhere in the barren hills.