The dark hued gypsy music is often described as romantic. It may be a coincidence but gypsies are often called Romas. It has its origins in eastern Europe and borrows from a number of ethnic musical styles.
The Glenn Miller classic “I Know Why and So Do You” references gypsy violins:
"When you smile at me I hear the gypsy violins, When you dance with me, I'm in heaven when the music begins." Zoltan's Gypsy Music from Hungary and Romania