Nearly 975,000 Syrians, most of whom fled the civil war in their country, are now residents of Germany. Two of them, a virtuoso violinist/composer and an accordionist teamed up with a German guitarist to form a trio called Tawabil, which means “spicy mixture” in Arabic. The name fits: They play an intriguing blend of jazz, flamenco and Middle Eastern music. Alexa Dvorson reports from Berlin.