Jisu Jung (정지수) is a pianist and composer from Seoul who trained in classical piano in Korea and Germany, studied jazz at Berklee College of Music in Boston and the Manhattan School of Music in New York, and now leads a chamber-jazz project called Baroque in Blue that reworks Baroque music and Charlie Parker tunes. She is billed Jisu Jung on her albums, on Apple Music and Bandcamp and on concert listings in New York and London; the Korean press prints her name as 정지수 (Jeong Ji-su in the Revised Romanization of Korean). No source gives her birth date or her citizenship. The ASCAP Foundation's 2020 list of young jazz composers gives her age as 25, of Boston, with Seoul, Korea as her place of origin, and her Bandcamp page places her in West New York, New Jersey.

Her biography on the Soapbox Gallery in Brooklyn says she was educated at the Yewon School and the Seoul Arts High School in Korea, and that she won the Osaka International Music Competition, the Hankook Ilbo Music Contest and the Teenagers Music Contest Korea as a classical pianist. She then went to the Dresden College of Music in Germany, where the same biography says the dean of the piano faculty, Arkadi Zenziper, personally invited her. By her own account in a 2026 interview with Fifteen Questions, classical training was central to her identity from a young age, and she found jazz later as a way to speak for herself, while traditional Korean instruments, rhythms and motifs also shape her music.

The wish to write her own music, her biography says, led her to leave Europe for Berklee, where she earned degrees in jazz piano and jazz composition. Berklee's event listings show her giving a recital of original compositions and arrangements in jazz and classical styles at the Berk Recital Hall on October 21, 2019, which included a piece called "K SINAWI," and a recital with her own jazz big band, the Jisu Jung Jazz Orchestra, listed for April 6, 2020. Her biography adds that she received the Berklee Pianist Composer Award in 2019.

On February 26, 2020, the ASCAP Foundation announced her among the recipients of the 2020 Herb Alpert Young Jazz Composer Awards, for a piece titled "Veronica Persica." The judges that year were Keyon Harrold, Hilary Kole and Oscar Perez. According to her biography she was also chosen for the Ravinia Steans Music Institute in Chicago in 2021, where she studied under the pianist and composer Billy Childs. In 2022 she won the Bridges Composition Competition at Ravinia, a contest for new works for string quartet and jazz trio, and her winning piece, "Moment to Journey," had its world premiere at Ravinia's Bennett Gordon Hall on June 3, 2022. A Korea Daily preview in April 2025 calls her the first Korean to win that competition. She then completed a master's degree in jazz composition at the Manhattan School of Music, which her biography describes as recent in September 2023.

Her first album as a leader that can be traced, Who am I, came out on September 22, 2023, and she presented it at the Soapbox Gallery in Brooklyn on September 30, 2023. The release show paired a saxophone, piano and rhythm quartet with a string quartet and a flute: Nicola Caminiti on saxophone, Ben Tiberio on bass, Marcello Cardillo on drums, Soyoung Choi and Tristan Siegel on violin, Ariana Mascari on viola, Miles Goosby on cello and Lorien Britt on flute. Her description of the record is that it keeps the freedom of jazz alongside the structure of the classical tradition. It opens with "Moment to Journey," the Ravinia prize piece, and its seven tracks also include one titled "Lady Bird"; no composer credits are published for the album.

In April 2025 she took the name of her new project, Baroque in Blue, to the Korean Cultural Center New York. The free concert on April 18, 2025, was the third of that year's Young Korean Artists Series, presented with the CJ Cultural Foundation, which has supported her through its music scholarship program. Korea Daily described it as an evening of her own compositions and jazz-standard arrangements with a saxophone, viola, cello and drums ensemble, and a CJ news release says the 200-seat theater sold out. The program, listed by the Korean Cultural Center, was "Autumn Leaves," arranged by her; "Donna Lee" and "Billie's Bounce" by Charlie Parker, recomposed by her; her own "Pieces to Peace," "Ugly Reflects Beauty" and "Baroque in Blue"; and "White Prayer," composed by her and improvised on by the group.

The studio album Baroque in Blue, credited to Jisu Jung & Baroque in Blue, was released on April 11, 2025. She plays piano, composes and produces; Soojung Lee plays saxophone, Hyeonjin Jung viola and Kanghyun Lee cello. It was recorded and mastered at Yagi Studio and mixed by Hyunjin Lee, and its seven tracks include her versions of Parker's "Donna Lee" and "Billie's Bounce." The ensemble is booked for the K-Music Festival 2026 at Ronnie Scott's in London on November 23, 2026, at 6:20 pm, where the listed line-up has Hachul Song on saxophone with Hyeonjin Jung and Kanghyun Lee. The festival page quotes the Berklee composer and pianist Vadim Neselovskyi, who called the project fresh and unexpected chamber music, and MM Jazz Magazine and Jazz People Magazine.

Her birth year, her exact birthplace, her citizenship and the label behind her releases are not published, and the 2019 Berklee prize and the 2021 Ravinia residency are known only from her own biography. She is a different person from the marimba and percussion player who is billed Ji Su Jung or Jisu Jung, who studied in Korea and is heard on classical recordings for Naxos and Bridge Records, and from the many other Koreans named Jung Ji-su.

Jung's own framing is a meeting of two traditions: the structure and logic of the classical repertoire, which she trained in from childhood, and the improvisation and self-expression she associates with jazz. Baroque in Blue makes that literal, taking Bach-era music, in the words of the festival listing, through the lens of jazz, with a saxophone, viola and cello in place of a conventional rhythm section. Who am I pairs a jazz saxophone-and-piano trio with a string quartet, and her ASCAP and Ravinia prizes were won for compositions rather than for playing. She names traditional Korean music as a further influence.

On whether she is primarily a jazz artist, the evidence favors jazz, with a strong classical side. Both of her albums are filed under Jazz on Apple Music, her university degrees after Dresden are in jazz piano and jazz composition, and her prizes are jazz-composition awards from ASCAP and Ravinia's jazz program. Her classical training and the baroque material are the competing identity, and she presents them inside jazz rather than as a separate career. The Subgenres tags Chamber Jazz and Third Stream describe that blend of string and woodwind chamber writing with jazz improvisation.