Soundtrack #1 was ranked first among the most-watched series on Disney+ in South Korea, Japan, Singapore, Hong Kong, and Taiwan, during the week of March 26, 2022.[40][41][42]
Ayushi Agrawal of Pinkvilla found the series reassuring and homely, stating that while it does not bring something new, the show manages to be a convincing love story, and praised the performances of Park Hyung-sik and Han So-hee.[43] Tanu I. Raj of New Musical Express rated the series 4 out of 5 stars and found it to be "one of the most sublime offerings of this summer." Raj called the relationship between the lead characters intimate, realistic, and sensitive, and praised the dialogues and the visuals, while complimenting the performances of the actors. Amit Adarsh states that "This series captures more emotions than 90% of the sixteen episodes romantic drama out there."[44]
^"박형식·한소희 '사운드트랙#1'서 밀당 로맨스" [Park Hyung-sik and Han So-hee's 'Soundtrack #1' romance]. DongA (in Korean). November 29, 2021. Retrieved March 12, 2022.
^Jeon Hyo-jin (March 12, 2022). "박형식♥한소희, 자연스러운 스킨십? 사랑과 우정사이 포착 ('사운드트랙#1')" [Park Hyung-sik ♥ Han So-hee, natural skinship? Capture between love and friendship ('Soundtrack #1')]. Sports Club (in Korean). Retrieved March 12, 2022 – via Naver.
^"박형식-한소희 뮤직드라마 '사운드트랙 #1', 디즈니+ 공개" [Park Hyung-sik and Han So-hee's music drama 'Soundtrack #1' released on Disney+]. KBS Entertainment (in Korean). February 6, 2022. Retrieved March 12, 2022 – via Naver.
^Kim Hye-jeong (March 2, 2022). "'사운드트랙 #1' 박형식, 훈남 사진작가로 온다" ['Soundtrack #1' Park Hyung-sik to come as a handsome photographer]. Sports Trend (in Korean). Retrieved March 12, 2022 – via Naver.
^Jung Yu-jin (March 3, 2022). "'사운드트랙#1' 한소희, 스틸…'마이네임' 어디 가고 청순 미모 [N컷]" ['Soundtrack #1' Han So-hee, still... 'My Name' Where to Go, Innocent Beauty [N Cut]]. News 1 (in Korean). Retrieved March 12, 2022 – via Naver.
^Cha Hye-young (March 17, 2022). "한소희, 꽃받침+카메라와 눈맞춤…러블리 매력 폭발 ('사운드트랙 #1')" [Han So-hee, calyx + camera and eye contact... Lovely charm explosion ('Soundtrack #1')]. Ten Asia (in Korean). Retrieved March 17, 2022 – via Naver.
^Ahn Byung-gil (March 23, 2022). "'사운드트랙#1' 김주헌, 이번엔 작곡가로" ['Soundtrack #1' Kim Joo-heon, this time as a composer]. Sports Trend (in Korean). Retrieved March 23, 2022 – via Naver.
^ abPark Seo-yeon (March 11, 2022). "박훈♥박민정, '사운드트랙 #1' 특별출연..찐부부 호흡" [Park Hoon ♥ Park Min-jung, 'Sound Track #1' Special Appearance...]. Herald Pop (in Korean). Retrieved March 12, 2022 – via Naver.
^Kang Hyo-jin (March 26, 2022). "서인국, '사운드 트랙#1' 특별출연…가수로 한소희 만난다" [Seo In-guk to make a special appearance on 'Sound Track #1'... Meet Han So-hee as a singer]. SpoTV News (in Korean). Retrieved March 26, 2022 – via Naver.
^"사랑은 말로 표현하는게 아니래요 (규현 X soundtrack#1)" [Love is not expressed in words (Kyuhyun X soundtrack#1)]. NHN Bugs. Xanadu Entertainment. December 30, 2021. Retrieved March 13, 2022 – via Melon.
^"행복해지고 싶어 (박보람 X soundtrack#1)" [I want to be happy (Park Boram X soundtrack#1)]. NHN Bugs. Xanadu Entertainment. January 6, 2022. Retrieved March 13, 2022 – via Melon.
^"행복해지고 싶어 (박보람 X soundtrack#1)" [It hurts to think of you with a girlish heart (Davichi X soundtrack#1)]. NHN Bugs. Xanadu Entertainment. January 20, 2022. Retrieved March 13, 2022 – via Melon.
^"My Love (김종국 X soundtrack#1)" [My Love (Kim Jong Kook X soundtrack #1)]. NHN Bugs. Xanadu Entertainment. January 27, 2022. Retrieved March 13, 2022 – via Melon.
^"나에게 말해요 (김재환 X soundtrack#1)" [Tell me (Kim Jaehwan X soundtrack#1)]. NHN Bugs. Xanadu Entertainment. February 6, 2022. Retrieved March 13, 2022 – via Melon.
^"너만 예뻐 (스탠딩 에그 X soundtrack#1)" [Only you are pretty (Standing Egg X soundtrack#1)]. NHN Bugs. Xanadu Entertainment. February 14, 2022. Retrieved March 13, 2022 – via Melon.
^"아주 조금만 더 (도영 X soundtrack#1)" [Just a little more (Doyoung X soundtrack#1)]. NHN Bugs. Xanadu Entertainment. February 22, 2022. Retrieved March 13, 2022 – via Melon.
^"이젠 친구에서 연인이 되고 싶어 (먼데이 키즈 X soundtrack#1)" [Now I want to become a lover from a friend (Monday Kids X soundtrack#1)]. NHN Bugs. Xanadu Entertainment. March 2, 2022. Retrieved March 13, 2022 – via Melon.
^"우린 어떠한 별보다 빛날 거야 (이하이 X soundtrack#1)" [We'll shine more than any other star (Lee Lee X soundtrack #1)]. NHN Bugs. Xanadu Entertainment. March 14, 2022. Retrieved March 13, 2022 – via Melon.
^"Love Love Love (서빈 X soundtrack#1)" [Love Love Love (Seobin X soundtrack#1)]. NHN Bugs. Xanadu Entertainment. March 23, 2022. Retrieved March 23, 2022 – via Melon.
^"이젠 친구에서 연인이 되고 싶어 (먼데이 키즈 X soundtrack#1)" [I miss you more and I'm sorry (Lee Ye-Jun X soundtrack #1)]. NHN Bugs. Xanadu Entertainment. March 29, 2022. Retrieved March 29, 2022 – via Melon.
^"더 미안하고 보고 싶고 그래 (스무살 X soundtrack#1)" [I’m more sorry and miss you, yes (20 years old X soundtrack #1)]. NHN Bugs. Xanadu Entertainment. April 13, 2022. Retrieved April 13, 2022 – via Melon.