I'd like a caper on the side of that chord, please.

Today during rehearsal, our director was parsing a chord in one of our pieces. The alto 2s and soprano 1s have the root(?) and fifth, while we (I sing second soprano) have the third. The alto 1s have a weird note that adds color to the chord, or as he put it, "it's the caper that adds a little spice to this chord." (Then he said sort of sheepishly, "I love capers. . ..") It was too precious an image not to capture in print.