A group of Drexel University students and faculty, in collaboration with Opera Philadelphia, have come up with a new way to capture the beauty of a song. They created a device that translates the pitch and volume of a singer’s performance into a work of visual art. The device will take center stage at Vox Ex Machina, Opera Philadelphia’s 50th Anniversary Gala, on Sept. 13, creating a one-of-a-kind concert experience for the audience.