 Sound shirt, cute circuit. When a conductor throws his arms in the air, an orchestra begins to play. Imagine a world without music. For deaf people, this is reality. My name is Cassandra. A signing woman sits in the front row. I can't hear music because I'm deaf. Young Symphonic or Hamburg presents Light's Flash on a long-sleeved shirt. Music should be for everyone. Introducing this sound shirt, a wearable device that enables the deaf to experience a concert through touch sensations. After six months of development, we put it to the test. Cassandra wears the blue-on-black sound shirt. When the conductor raises his baton, lights pulse up and down the garment. Other patrons test it too. Cassandra flinches and beels. A nodding man turns to his partner and says, Good. Cassandra holds a hand to her chest and a woman closes her eyes and bliss. This is how it works. Microphones all over the stage cover the different types of instruments. A software converts the sound into data and sends it to the shirt, where 16 vibration motors pulsate with the intensity of the music. For example, the bass on the stomach and the violins along the arms. Cassandra chuckles. Cassandra still tested the shirt and their reactions speak for themselves. The man's eyes widen and the woman tells her companion, What you can hear, I can feel. I can feel the violins so delicately, the man tells his partner. I could feel the music all over my body, Cassandra reports. Let's try ACDC, she says, with a laugh. A sound shirt, now available at every concert of the Young Symphonic Orchestra of Hamburg. Cassandra joins a standing ovation, waving her hands in the air.