A Great Chord from Heitor Villa-Lobos

My newest listening challenge: to listen to the 17 string quartets by one of my favorite composers, Heitor Villa-Lobos (1887-1959). VL wrote his first string quartet in 1915, his last in 1957. The general consensus amongst music scholars appears to be they are groundbreaking works, though at times inconsistent or wandering. (I got this from Lionel Salter of Gramophone Magazine)  But they are always original and demonstrate a wide range of tones, melodies, textures and  musical ideas.
Here is a great chord that appears very early in his String Quartet no. 1.

The second measure is the chord. My friend and music theory expert, Dr. Reynold Simpson, Associate Professor of Music at the University of Missouri at Kansas City, says this of the chord:
"That's simply a G9 chord (the A in the second violin is a major 9th above the root in the cello.) The 9 is simply an extension of the stack of thirds that creates a 7 chord (1-3-5-7-9).
It may be simple, but it packs an emotional punch.

Take a listen The chord appears at the 1:07 mark.

 I will report back when I have made it though all 17 string quartets. 

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