Whatās crazy is not only did Riz Ahmed learn the drums for Sound of Metal, but he also had to pick up sign language. Itās seriously intense. Now Ahmed is already an accomplished rapper, so heās already musically-inclined. But he found drums to be a completely different animal to tackle, and heās not exactly running to another drum set anytime soon. Although it wasn’t easy to pick up, he really loved the challenge of learning about communication from a new perspective.