BWW Blog: Soprano Julia Engel - DIE FLEDERMAUS at Opera in the HeightsSeptember 9, 2016As the summer turns to fall (in spirit, it's still 90+ degrees out here in Houston) the artists at Opera in the Heights gear up for their 21st season. Opening the season is the ever-popular Strauss operetta Die Fledermaus, which is rife with catchy tunes, traditional Viennese waltzes and stunningly beautiful vocal lines.