Jeong Hwan Park (박정환) is a bassist and composer born in Seoul, South Korea, who has lived and worked in the New York area since he moved there in 2011. He has led one album, Sound of Bronze (2019), a quartet record of eight of his own pieces with the tenor saxophonist Rich Perry, and he has recorded as a sideman for the pianist Francis Hon and the guitarist Julphan Tilapornputt, among others. His date of birth is not published. His own YouTube channel, which his website links to, is titled "JP Arc Music | Jazz Bassist 박정환" and gives his name in Hangul; no Korean-language article or database entry for him was found.

His origin in Seoul comes from his own biography, which says he is "originally from Seoul, South Korea," and from the critic Scott Yanow, whose review of Sound of Bronze says he was born there. Nothing found says where he studied or played before 2011, who taught him or when he took up the bass, so the account of his early years stops with the city. In 2011 he moved to New York to attend The New School for Jazz and Contemporary Music, and in 2016 he received a master's degree in jazz performance from New York University.

In New York his biography lists work with Rich Perry, Kenny Werner, the drummer Billy Drummond, the pianist Alan Broadbent and "many talented young musicians," and names the clubs he has played: the Blue Note Jazz Club, Zinc Bar, 55 Bar, Bar Next Door, Cleopatra's Needle, BonaFide and Jackson's Room. The shows his website lists for early 2020 include a March 12 date with the David Ullmann Quintet at Tomi Jazz, jam sessions that he hosted at Turnmill NYC and at The Local in Astoria, a bass and guitar duo with Leo Kim at The Bean on January 9, and trio engagements at Diwine in Astoria and at Sarabeth's, at 27th Street and Park Avenue. His website invites enquiries for gigs, events and lessons, and he describes himself as a bassist, composer and educator. His YouTube channel describes him as a South Korean jazz bassist based in New York and New Jersey.

His earliest recording credit on Discogs is Julphan Tilapornputt's Quartet, Regards To You II (2016), where he plays bass beside the tenor saxophonist Joe Wagner and the drummer Ken Ychicawa. Two years later he was the bassist on pianist Francis Hon's debut trio album Before Dawn (2018), with Drummond on drums. Troy Dostert's All About Jazz review singled out Park's "nimble basswork," said it generated much of the momentum on the opening "Little B's Poem," and noted that Hon and Park had already played together in Hon's World Jazz Quintet. That group's live album, recorded on October 18, 2017 at the Queensborough Performing Arts Center Theatre in Bayside, New York, has Park on electric bass, and it includes his ballad "Ultimo fin de Semana." Dostert reviewed it on July 28, 2020. His website also lists the Junko Sakai Trio album Find It Again (2019, with the drummer Ronen Itzik), Sebastian Acosta Quintet's Descubrir and Koyari's Rosa (2016, led by the Ecuadorian guitarist Luis Castro).

Two of those names point to a South American strand in his career. His biography says that in 2016 he was chosen to have a concert sponsored by the Embassy of the Republic of Korea in Santiago, Chile, and that he gave it with an acclaimed Korean gayageum soloist, a program meant to show jazz fused with traditional Korean music. It does not name the soloist, the venue or the date. He also played a jazz festival in Ecuador in 2017 as a member of Koyari, and with the Sebastian Acosta Quintet in 2018; the biography does not name the festival, and the 13th Festival Ecuador Jazz, which opened in Quito on February 8, 2017, listed Koyari among its local groups.

Sound of Bronze is his debut as leader and producer. His biography dates it March 2019, and Apple Music lists a release date of April 10, 2019. Park wrote all eight pieces, and the quartet of Rich Perry, the pianist Nitzan Gavrieli and the drummer Takehiro Shimizu recorded it at Acoustic Recording studio in Brooklyn. Dostert's All About Jazz review of June 2, 2020 called it a promising quartet album by a bassist on the rise, with a quiet sophistication and considerable emotional depth, and picked out the ballads "Ultimo Fin de Semana" and "Oracion" and the waltz "Maldivia." Yanow's review in the Los Angeles Jazz Scene, dated May 2, 2020 on Park's website, found the compositions original and thought-provoking, his solos concise and his accompaniment subtle but creative.

Park writes and plays modern acoustic jazz in the post-bop and straight-ahead tradition. Dostert describes the music on Sound of Bronze as slow to mid-tempo pieces with unhurried development, where "nothing is forced," and finds Park's gift for melody best shown on the quieter, more melancholy tracks. Yanow hears a modernized blues in "Blues for GD" whose theme sometimes recalls Thelonious Monk, a hard-driving uptempo swinger in "Cringe Moments" and a waltz in "Maldivia" that he thinks John Coltrane might have enjoyed exploring.

Two of the album's titles, "Ultimo Fin de Semana" and "Oracion (for Mother)," are Spanish. On other people's records he adapts to the leader: Dostert hears him on electric bass in a groove-heavy, funk-inflected setting with the World Jazz Quintet and in a mainstream piano-trio setting on Before Dawn. His channel shows him playing standards and jazz repertoire, among them Bud Powell's "Hallucinations," "Flamenco Sketches," "Mood Indigo," "Come Rain or Come Shine" as a solo bass piece and "I Got It Bad and That Ain't Good."

No interview in which he names his influences was found, so this section stays with his records, the reviews and his own repertoire.