Matt Bayles (BAY-less; born October 19, 1972) is an American record producer, mixer, engineer, and musician, based in Seattle, Washington.
Bayles is known for his work with bands such as The Classic Crime, Isis, Soundgarden, Pearl Jam, Botch, Mastodon, Minus the Bear, Burnt by the Sun, and Norma Jean and as the keyboardist for American indie rock band Minus the Bear.
Later, Bayles earned an assistant engineer credit on Deftones' Around The Fur after linking up with producer Terry Date.
Some of Bayles' early work includes producing, engineering, and mixing the seminal albums Oceanic by Isis and We Are the Romans by Botch.
[1] More recently, Bayles has worked with St. Louis indie rock band Foxing, handling the production and mixing of their 2015 LP, Dealer.