With a powerhouse voice and down-to-earth charm, Adele has secured her status as one of the musical greats. But what it is, exactly, that has so many of us head-over-heels in love with her songs?

Through her powerful voice and emotional songs, Adele has won an impressive collection of 16 Grammy Awards, an Oscar, a Golden Globe, and many other prizes. Her album “21” became one of the ...