[8] On March 5, 2012, she was selected as the winner of the 9th Tune Up, a competition and musician support program run by the CJ Cultural Foundation.

Lee Han-jin, a professor of applied music at Seoul Institute of the Arts participated in this album as a jazz trombone performer.

The other members of "JinA Band" were Park Hyun (contrabass) and Cho Sun-kyun (drums) before and after K-pop Star 4.

"[14] Antenna Entertainment CEO You Hee-yeol drew attention by saying, "I think I saw here the reality of a female musician who I had dreamed of not being able to conclude or define.

[16] On April 20 , it was announced that she had signed with Antenna Music alongside Jung Seung-hwan who was her co-contestant and runner-up for K-pop Star 4.

[17] On June 10, 2016, Lee Jin-ah made a label debut with the single "I'm Full" which is the first part of her trilogy release.

[22] You Hee-yeol said to her not to pay much attention to the album's success, praising her as "a musician who shows her true value at a concert hall.

[30] Lee Jin-ah was also part of Antenna's label concert later that year called "With, Antenna" that toured throughout 5 cities in South Korea and U.S.[31] On June 26, 2018, she released her 2nd full album Jinah Restaurant Full Course which is the final part of her trilogy release.

[34] On September 13, 2023, Lee Jin-ah released her 3rd full length album after 5 years called Hearts of the City.

[39] Shin has steadily participated in her songs by playing musical instruments, rhythm programming, and string arrangements.