The album received positive critical reception from music listeners, and audiences, praising Santhosh for a different kind of blend of mixtures and genres in the soundtrack album.[2]
Development
Santhosh Narayanan, signed in to compose the film's soundtrack in 2017, collaborating with Rajinikanth and Pa. Ranjith once again after Kabali (2016), and also its second collaboration with the former.[3] Recording of the songs, which commenced in September 2017, was completed within the end of 2018. The soundtrack album, consists of nine songs in the Tamil version. The album consists of one a cappella song, only in the Tamil version of the soundtrack album. The lyrics for the songs were written by Kabilan, Umadevi, Arunraja Kamaraj, Arivu and rap portions were penned by Logan and Roshan Jamrock. Dharavi-based street rapper band, Dopeadelicz also contributed to the album, by writing and also performing three songs, apart from playing an important role in the film.[4] Celebrity singers also sung the songs, which included Shankar Mahadevan, and Vijay Prakash. Ananthu, Pradeep Kumar, Dhee also sung the songs for the film, with three of the songs were sung by the former.[5] Malaysian rapper Yogi B rendered one song, which is reported to be the theme music of the film. His rap portions were used in the teaser of the movie, only in Tamil version.[6]
Marketing
The audio rights of the film were secured by Wunderbar Studios, a subsidiary of the production house Wunderbar Films, along with Divo. The official theme music used in the film's teaser was released on 7 March 2018.[7][8] Later in April 2018, Dhanush, the producer of the film posted on his official Twitter account, stating that the film's audio will release on 9 May 2018.[9][10]
On 1 May 2018, the makers released the first single track from the film,[11][12] titled as "Semma Weightu" in all streaming platforms and on YouTube.[13][14][15] The song penned by Arunraja Kamaraj, with Hariharasudhan, Santhosh Narayanan and Arunraja Kamaraj, crooning the vocals, with Dope Daddy, Stony Psyko, MC Mawali, a part of the Dopeadelicz band, rendering the rap versions.[16] The official lyric video of the song crossed 2 million views, within 24 hours of its release.[17]
An album preview was released on 7 May 2018 on YouTube where director Pa. Ranjith, and Santhosh Narayanan, shared their views by expressing their opinion about working for the film's soundtrack.[18] The tracklist was released on 8 May 2018.[19][20]
The soundtrack received positive reviews. Behindwoods rate the album 3 out of 5 stars, stating that "A dynamic album by Santhosh - dominated by tracks with social messages - who weaves his magic with his not-to-miss mass and melody tracks!"[33]Indiaglitz rated it 3 out of 5, and summarised that "Santhosh as a mindful composer understanding the politically charged nature of the tracks, balances composition to match the lyrics and not vice versa. 'Kaala' album has most songs that might fit as easy on a political protest as it does on a dance floor."[34]The Times of India summarised it as "The album of Kaala, in many ways, sounds like an extension of Kabali – be it in terms of soundscape, instrumentation or the heavily-worded lyrics. Listen to the songs with the story and background in mind, and you'll be able to appreciate its nuances better."[35]Scroll.in reviewed it as "Lots of revolutionary spirit and some good tunes".[36]India Today summarised the soundtrack as "blend of genres, and political messages".[37]Firstpost rated it as "Kaala is not an album for those of you who are looking for the usual commercial tracks that uplift Rajinikanth's image. What Santhosh does here is bring together a pool of local talent and an ensemble artist line-up at to give us a very different jukebox. Infused with Thalaivar's style yet crafted for the people, Kaala is slow kill for many. Not your everyday album, that makes you groove or stay hooked, Kaala is the one with thoughtful lyrics and for Tamil rap lovers. Except for the few breezy melodies completely contrasting to Kabali — Santhosh's last outing with the same team."[38]Hindustan Times reviewed it as "Santhosh Narayanan's album evokes a sense of revolution in Rajinikanth's film".[39]The Indian Express reviewed the album as "Experimental and definitely not the material of a full-blown mass film, Kaala's music is a mishmash of genres and instruments that is interesting but leaves us with a mild feeling of being lost."[40]
The original soundtrack of Kaala features fifteen tracks by Santhosh Narayanan. The theme music "Rain Fight" was released as single on 13 June 2018,[41] and the "Hari Dada Theme" was released as the second single on 29 June 2018.[42] The full background score was released on 13 July 2018.[43][44]
