Mariana Green-Hill began studying violin at the age of four. At age nine she auditioned into Project STEP (String Training and Education Program for students of color), and under its auspices Green-Hill studied at the New England Conservatory Preparatory School. Her studies at NEC extended from 1986 to 1997. Her teachers included Farhoud Moshfegh at NEC, Marylou Speaker Churchill, then Principal Second Violin of the Boston Symphony Orchestra, and Tamara Smirnova, Assistant Concert Master of the Boston Symphony Orchestra. Green-Hill received Bachelor and Master Degrees from the Juilliard School, and a Professional Studies Diploma from the Mannes College of Music.
Green-Hill is a Second, Third and Best Tone Award Winner of the Sphinx Competition and placed first in the Boston Symphony Orchestra Youth Competition, the 17th Annual NAACP Act-So Competition, and the Chinese American Art Society Competition. Green-Hill has been a featured guest soloist with the Memphis, New Jersey, and Detroit Symphony Orchestras, the Boston Pops, Symphony Pro Musica of western Massachusetts, Boston Philharmonic Orchestra, Civic Symphony of Boston, and the Cape Ann Symphony.
Green-Hill is a member of the Young Eight, a group of emerging African American artists who perform chamber music throughout the country. She is concertmaster of the Soulful Symphony in Baltimore. For eight years she was the second violinist of the Amaryllis String Quartet.
Green-Hill currently serves as the Artistic Director of Project STEP.