NCT 2020 Resonance

On September 15, 2020, it was announced that all current members of NCT would finally reunite as NCT 2020 following their first studio album, NCT 2018 Empathy, in 2018.[7] A teaser video, titled "Interlude: Resonance," was released on September 20.[8] The album's name, Resonance, was announced a day later, with the album to be released in two parts: the first would be released on October 12 while the second part would receive a November release in the same year.[9] NCT groups NCT 127, NCT Dream, and WayV were confirmed to be part of Resonance, with WayV's Xiaojun, Hendery, and Yangyang officially being inducted in NCT through the project. Two new NCT members, Sungchan and Shotaro, would debut with Part 1's release, bringing the total number of members to 23.[9] Pre-orders for the album began on September 21.[10] Another teaser video, named "Year Party," was released the next day, which featured all members assembling.[8] On September 23, the 23 members gathered in a V Live broadcast where Sungchan and Shotaro were officially introduced to the public.[11]

In accordance to the album's release schedule, a short music video for NCT Dream's "Déjà Vu" was released on October 8, 2020, through the group's YouTube channel, with the music video for NCT U's "Misfit" released a day later.[12][13] Along with its parental album, the music video for "Make a Wish (Birthday Song)" was then released on October 12, 2020, while the music video for "From Home" was released on October 19. The physical album comes in two versions: Past and Future, with different packages for the Korean edition and the international edition.

On November 9, SM Entertainment confirmed that the second part of the album would be released on November 23, 2020. Previously, during the announcement for Resonance Pt. 1, the company stated that the NCT 2020 Project would consist of two parts.[14]

Member Doyoung revealed that producers would be in charge of selecting songs and which members would be recording them.[15] Recording sessions took more than a month to conduct.[15] Compared to Empathy, Taeyong is not the leader of the collective NCT 2020, saying, "I'm not actually the lead of NCT right now because the 22 other members are very awesome and these guys don't need a lead. So I'm not the leader of NCT. I just say, 'Hi, guys' and 'Hana dul set... [1, 2, 3...]' to start our greeting."[15] Taeyong explained that Resonance marks as a progression of Empathy, explaining, "Our music is so different too, because now we are in the pandemic, and our lyrics mean we can overcome this right now, and we’re more confident and powerful. We are definitely more grown-up."[16] He also described the various genres and styles the album featured, saying, "If you listen to our album, you’ll notice that obviously we have a more traditional kind of ballad, but we also have other tracks that are more old school and have that retro vibe."[16]

The NCT U unit for "Make A Wish (Birthday Song)" consisted of Taeyong, Doyoung, Jaehyun, Lucas, Xiaojun, Jaemin, and Shotaro.[17] The hip-hop dance track "Make A Wish (Birthday Song)" was co-written by rappers Penomeco and Damian, while music was composed by Sonny J Mason, Karen Poole, and Bobii Lewis.[18] Korean and English versions of the song were included in the album, with Jaehyun explaining that these were recorded with international audiences in mind. Doyoung shared that the song "aims to give listeners a positive vibe and deliver positive energy," with the song's title and lyrics being a spin on making birthday wishes.[16]

The sub-units of NCT each released a song for the album: "Déjà Vu" for NCT Dream, which served as Mark's return to the Dream unit; "Nectar" for WayV; and "Music, Dance" for NCT 127.[16] Doyoung described "Music, Dance" as "energetic," saying, "I just remember having a lot of fun recording it, but we also trying to deliver the same energy when I recorded it. I remember kind of sweating it out actually in the studio."[15] "Déjà Vu" is about the original seven Dream members reuniting, with Jaemin sharing, "The theme of the song was, 'Let’s go back on stage together.' It was great to be reunited again as seven and to be able to showcase that reunion on Resonance Pt. 1."[15] Lucas and Xiaojun described WayV's song, "Nectar," as "sexy." Describing the recording process, Xiaojun explained that they "wanted to use that feeling — like bad boys with this very special juice."[15] Instrumental "Interlude: Past to Present" was a favorite of some members, with Taeyong elaborating, "It explains NCT and kind of introduces the group within the music."[16] The group that performed "From Home" included Taeil, Kun, Yuta, Doyoung, Renjun, Haechan and Chenle, and was performed in four languages - Korean, English, Mandarin Chinese and Japanese.[15][19][11]

The lead single of part 2, "90's Love", is a new retro hip hop R&B song featuring Ten, Winwin, Mark, Jeno, Haechan, Yangyang, and Sungchan;[20] its lyrics are about creating new and unique values. "Work It" is an electronic dance song recorded by Johnny, Yuta, Ten, Jungwoo, Hendery, Jaemin, and Jisung while "Raise The Roof", sung by Taeil, Yuta, Johnny, Kun, Jungwoo, Hendery, Renjun, Chenle, and Jisung, is a hip hop track that uses oriental instrumentations. "My Everything" contains a minimalist composition that features the vocals of Taeil, Xiaojun, and Renjun on a calm piano melody. "All About You", sung by Jaehyun, Jungwoo, Mark, Hendery, Shotaro, Sungchan, and Chenle, is a medium-tempo pop song that utilizes retro and modern bass sounds while "I.O.U" is a lo-fi hip hop track recorded by Taeyong, Kun, Doyoung, Yangyang, Shotaro, Chenle, Jisung. Two additional instrumental tracks are included: "Interlude: Present to Future" and "Outro: Dream Routine".

Credits adapted from Naver.

Credits adapted from Naver and QQ Music.[23][24] Track listing is based on Resonance Pt. 2.