The music... without the altitude.
Tibetan Buddhism regards music as an important mean to prepare the mind for spiritual enlightenment. During monastic rituals, chants are sung mostly in unison, accompanied by cymbals, bells, and drums. Sometimes other wind instruments join the ensemble too, such as the dungchen, the famous Tibetan long horn. The result is a complex sound made of many layers, a sound that will both serve you as an excellent noise blocker, and meditation aid.