Taiko Matsumoto (vocals) Since she was a child, she attended church and became familiar with chant, and at the same time she began piano lessons. Started live performances as a singer-songwriter, and later studied under Kimiko Ito. Received the UCC Jazz Vocal Rookie Contest Special Award in 1986. Formed "Rabi Sari" in 1998. Performed voice performances in 2002 and 2004 in Italy, France and Romania, and in 2006 in Norway, France and Italy, and received rave reviews. She also gave Successful performances of "Rabi Sari" in Portugal and Romania in 2005. In April 2019, She performed a live concert with late Toru Saito to celebrate the releasing of the duo’s new DVD, "Sluggish Waltz.” Most recently, she participated in "Matthew Passion 2021” in February sponsored by shezoo. 

As a highly regarded voice trainer, she teaches many theater and musical actors.