Gina (지나) is a South Korean jazz pianist, keyboardist, composer, arranger and producer who records under the project name Ginagram (지나그램). She released three albums, Ginagram (2005), Ginagram Vol.2 (2007) and Ginagram Vol.3 (2011), all of them built on acid jazz grooves with soul, funk and hip-hop guests, and the third adds a handful of jazz standards. Her releases print the name Gina, and Korean streaming services list her as 지나 (Gina). Korean press and label texts call her a jazz pianist first; she sings on much of the first two albums, while guests front most of the third.

When Hankyoreh profiled her at the time of her first album, in September 2005, it gave her name as Seo Hyun-a (서현아) and her age as 30, which places her birth around 1975. No source gives a date or a place of birth.

She told Hankyoreh that she played piano from the age of five until she entered middle school, and TV Daily reports that she played piano at church as a child. She was studying nursing at Ewha Womans University when jazz took hold of her, and she considered transferring to a music school, but her parents asked her to finish her degree first. After graduating she left for the United States in 1997, studied English at Santa Monica College and then entered the Berklee College of Music. She told TV Daily that Berklee placed her at level 2, the level for students who could not yet play jazz, and that a teacher once told her in an ensemble class to sit and listen because her playing was spoiling the performance. She answered by auditioning for a higher level every semester and spending every spare hour at the piano. By her third year she was on scholarship, and she won Berklee's jazz performance award; the label text for a 2008 album by the rapper P-Type dates that award to 2002.

She had first meant to study film scoring at Berklee, she told Hankyoreh, but found it demanded jazz, orchestral arranging and film knowledge together, so she went back to the beginning on piano. She then took a master's degree in jazz piano and composition at New York University; Hankyoreh counts eight years from her departure to that degree. The songs she had written as her NYU graduation work became her first album.

She returned to Korea in 2005 and began teaching almost immediately. TV Daily says she also took part in founding the Jazz Park Big Band (재즈파크 빅밴드), and the label text for Ginagram Vol.3 calls her its only female member. The same text says she became the music director of two jazz musicals, Sing Sing Sing (싱싱싱) and All That Jazz, and worked as a jazz critic, broadcaster, university lecturer and master of ceremonies between albums. By 2012 TV Daily described her as an adjunct professor at the graduate school of Sangmyung University.

Ginagram Vol.3 came out on June 14, 2011, four years after the second album, with a release concert announced for the Jazz Park series at the Textile Center in Daechi-dong. In November 2012 TV Daily reported that she had produced a Christmas album with singers from Infinity Music, planned with the broadcaster Far East Broadcasting, and a full album for the jazz violinist Min Sun-jeong's big band. Those are the latest activities found; no further album under her name followed Ginagram Vol.3.

Her stated model is the pianist and producer George Duke, whom she told Hankyoreh she admires for handling gospel, R&B, hip-hop, soul and funk and for singing well. Her instrumental "Just Like Duke" is written in his honor and trades solos between piano, guitar, saxophone and drums over a steady beat, with hip-hop turntable scratching added. Hankyoreh called her music a crossbreeding of genres, and the label text for her first album says her piano touch on the Iraq War piece "Dreaming" sounds like a Keith Jarrett solo.

Message songs run through all three albums. "Dreaming" (2005) was written against the Iraq War and weaves five languages through the arrangement, which she explained as languages acting like instruments. "Compassion" (2007) came from her decision to sponsor a child through the charity Compassion. "Your Name Is Woman" (2011) begins with a conversation with a reporter from Women's News and was written for girls who die from female genital cutting in Somalia. The rapper-and-singer guests, from Jung In and Mikey on the second album to Soulman, Sunwoo Jung-a and Defconn on the third, give the records a Korean R&B and hip-hop sound, which the label text for the first album described as neither too American nor too Korean.

Her own playing is described as restrained. The label text for the first album says she holds back in her own solos while pushing other players' solos hard, and the text for the second album describes a soft, uncluttered touch. She plays B3 organ on the first album, and "Hey, Bob" on the second is an experiment in memory of the synthesizer pioneer Bob Moog built from sine waves, analog delay and filters instead of sampled audio. The 2011 review on Rhythmer described her as someone who had always pursued acid jazz, which is rare in Korea, praised the albums in the press and noted that they had never found a wide audience. The first album's "봉우리" is a remake of Kim Min-ki's song; she told Hankyoreh that he did not want more remakes and relented only after she sent a demo and a letter, and he speaks the message that opens the track.