After internationally-acclaimed performances at the Taj Mahal in India and China’s Forbidden City, Yanni has embarked on a World Tour to promote his new album “Tribute.”Performing before a sold-out crowd Wednesday night at Polaris Amphitheater, Yanni proved he deserves a spot among the ranks of revered composers.Okay, so he’s no Beethoven or Bach and to compare him with the likes of Mozart would seem ridiculous, but there are some surprising similarities. Just as Mozart began composing at an early age, so did Yanni.Yanni was writing and composing music before most kids had given up the Saturday morning ritual of watching “Scooby Doo.”He composed “Nostalgia” during his early college years at the University of Minnesota. Missing his friends and family in his native Greece, Yanni said he turned to a piano to vent his frustrations and feelings of loneliness. And he composed “Marching Season” before he could play the piano with both hands at the same time, he said.Yanni revealed his true abilities to arrange contemporary orchestral literature in “Renegade.” Breaking out into a violin solo that would make Jean Luc Ponty look like a rookie musician, Karen Briggs, Yanni’s star performer, dominated the stage and left the crowd screaming for more.”Tribute” contains nine new works, many of which were recorded live at his concert in India. Yanni crossed into new territory when he composed “Love Is All,” a song inspired by his belief that “diversity must be embraced, not feared.” This composition represents the first time he has ever applied lyrics to one of his songs.The concert was highlighted by a celebration of diversity that had the crowd on its feet, clapping and dancing in the aisles, while the orchestra dropped their instruments and began dancing in front of a backdrop of the flags of the world.Yes, behind the hair and swooning women, there is a true, accomplished musician.