[2][3] He is a graduate of the Academy of Music of Alexander Hamilton High School in Beverlywood, Los Angeles.

[1] Washington next enrolled in UCLA's Department of Ethnomusicology, where he began playing with faculty members such as Kenny Burrell, Gerald Wilson, and Billy Higgins, who mentored a quartet with Washington, pianist Cameron Graves, and the brothers Stephen ("Thundercat") and Ronald Bruner.

Washington has played along with a diverse group of musicians including Wayne Shorter, Herbie Hancock, Horace Tapscott, Lauryn Hill, Nas, Snoop Dogg,[13] George Duke, Chaka Khan, Flying Lotus, Mike Muir, Francisco Aguabella, St. Vincent, the Pan Afrikaan People's Orchestra, Run the Jewels and Raphael Saadiq.

On June 25, 2020, Washington, Terrace Martin, Robert Glasper, and 9th Wonder announced the formation of the supergroup Dinner Party.

[14] On June 18, 2021, Washington released a new song "Sun Kissed Child" as part of The Undefeated's Music for the Movement series.