Fred Welton Warmsley III (born September 22, 1987), is an American record producer and sound artist from Sacramento, California.

Warmsley, then known as Lee Bannon, first began to receive attention after self-releasing a number of homemade beat tapes from 2010 to 2012, eventually leading to collaborations with California rappers Souls of Mischief, Hieroglyphics and fellow producer The Alchemist.

He wrote that Pattern of Excel would be his final release as Lee Bannon, adding that he feels the name had "reached its limits" and that "the future can no longer exist in the same realm with music I created when I was 17, fickle and still developing.

[24] On September 1, 2016, it was announced that Warmsley would be releasing his debut studio album as Dedekind Cut, titled $uccessor, on November 11, 2016 on the NON Worldwide record label.

The mixtape is dedicated to Chyna Gibson, a trans woman and performer of color from Sacramento, California who was shot dead in New Orleans, Louisiana during Mardi Gras.