Kumi Matsuo was born in Tokyo, Japan. Winner of the 5th Louisiana International Piano Competition in 2013, she has won Second Prize at the 75th Music Competition of Japan in 2006, Third Prize at the 22nd Ferrol International Piano Competition in 2008 and First Prize at the 6th Isidor Bajic International Piano Competition in 2012.
Kumi graduated from the Toho Gakuen High School of Music and the Toho Gakuen University of Music in Tokyo. In 2007 she moved to London for her further study at the Royal College of Music where she gained an Artist Diploma and a Master of Music in Performance supported by the Charles Napper Award, the Russell Gander Award and the Rohm Music Foundation. Kumi has also finished the Anthony Saltmarsh Junior Fellow in Accompaniment at the Royal College of Music.