American composer George Gershwin in 1925. Hulton Archive/Getty Images hide caption

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Hear 'Summertime' And What Makes It Great
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The Octet, which Mendelssohn wrote when he was only 16, continues to inspire with its originality and genius. Wikimedia Commons hide caption

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Hear What Makes The Octet So Great
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Simplicity, it turns out, is the secret to the success of Handel's ever-popular "Hallelujah Chorus." istockphoto hide caption

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Hear What Makes The 'Hallelujah Chorus' So Great
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Actress and singer Judy Garland wearing as Dorothy from director Victor Fleming's film, The Wizard of Oz. Wikimedia Commons hide caption

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Hear 'Over the Rainbow' And What Makes It So Great
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Robert Schumann's music evokes the image of a child's dreams. iStock hide caption

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Kinderszenen (Scenes from Childhood) for piano, Op. 15 [7. Träumerei]
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Adagio for strings, Op. 11
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Mazurka for piano No. 13 in A minor, Op. 17/4, CT. 63
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Fred Astaire and Ginger Rogers Hulton Archive/Getty Images hide caption

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Hear What Makes Berlin's 'Cheek To Cheek' So Great
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Sonata for violin & piano No. 9 in A major ("Kreutzer"), Op. 47
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Czech composer Leos Janacek sent a non-stop stream of more than 700 love letters to a much younger, married woman; she inspired many of his best works. iStock hide caption

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Hear What Makes Janacek's String Quartet No. 2 So Great
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