What is sylvia massy?

Sylvia Massy is a renowned record producer, mixer, and engineer in the music industry. She has worked with a long list of iconic artists and bands, including Tool, System of a Down, Red Hot Chili Peppers, and Johnny Cash. Massy is known for her unconventional and creative recording techniques, as well as her ability to push the boundaries of traditional studio practices. She has also authored a book called "Recording Unhinged" which explores her unique approach to recording and production. Massy continues to be a highly respected figure in the world of music production.