Kaatru Veliyidai (soundtrack)

In late 2016 Vairamuthu, the lyricist for this soundtrack revealed that this album would have seven songs but the original album could only retain six tracks. In the song Tango Kelaayo it was Haricharan himself who sang the female part with his vocal formant and pitch tweaked to modulate like a young sensuous female.[14] A. R. Rahman also said in an interview to The Hindu that Tango Kelaayo was the song from the album that took maximum time to complete. When Diwakar was called to sing, he was given only a small part. But later, impressed by his singing, Rahman decided to use him for the whole song- Diwakar said this in an interview to Behindwoods. When the song "Vaan" was being composed, Rahman used only keyboard as the basic instrument for the bgm and Shaasha's voice to which Mani Ratnam agreed. Later Rahman added a flute bit to the song after Ratnam had actually shot it in Belgrade, Serbia. Rahman also stated that a few portions of the background score were composed in London. The song "Jugni" had been sung by Indian Idol 2017 contestant Tejinder Singh (the Punjabi portions alone). This, he revealed on his Twitter page. The trailer which was unveiled by Mani Ratnam and A. R. Rahman on March 9 had the unreleased track "Tango Kelaayo"'s bgm and the other "Jugni" track playing in the background. The theatrical print also had a track "Anbay" playing in the background sung by Rahman himself and the song "Vaan (unplugged)" sung by Shashaa Tirupati, both not included in the original motion picture soundtrack album.

A musical glimpse of the film was released on 26 January 2017, and it was announced that the first single will be released on 2 February 2017.[15] A short teaser of the song "Azhagiye" was released on 1 February 2017,[16] and the full song was released the later day. The Telugu version of the song, titled "Hamsaro" was released on the same day. The lyric video reached 1 million views within 24 hours of its upload.[17] "Azhagiye", featuring the voices of Arjun Chandy, Haricharan and Jonita Gandhi, and lyrics by Madhan Karky (his second collaboration with Ratnam after Kadal) seems to be a breezy number from A. R. Rahman. The full song (Tamil and Telugu version) has been released on Wynk Music for Android users and on iTunes for Apple users. The second single track "Vaan" was released on 14 February 2017, coinciding with the Valentine's Day.[18] Before the single release, a promo of the song was released on 13 February 2017, on YouTube.[19] It was released in Telugu as "Maimaruppaa" on the same day. The third single track "Sarattu Vandiyila" was launched on 1 March 2017 at midnight, also in Telugu.[20][21]

Credits adapted from info published in the official CD cover.

Backing vocals

Personnel

Production

• Producer: A. R. Rahman
• Mastering: Suresh Permal
• Mastering for iTunes: S. Sivakumar
• Additional Programming: Ishaan Chhabra (for Azhagiye, Vaan, Tango Kelaayo, Tango Kalalo), Jim Sathya (for Tango Kelaayo and Tango Kalalo), T. R. Krishna Chetan (for Hamsaro)
• Engineers (Panchathan Record Inn, Chennai): Suresh Permal, Srinidhi Venkatesh, Karthik Sekaran, Vinay Sridhar, Ishaan Chhabra, Jim Sathya
• Engineers (AM Studios, Chennai): S. Sivakumar, Kannan Ganpat, Pradeep, Anantha Krishnan, Manoj, Srinath

Additional Vocal Supervision: VJ Srinivasa Murthy

• Mixing: T. R. Krishna Chetan
• Musicians' co-ordinators: Vijay Iyer, T. M. Faizuddin
• Musicians' fixer: R. Samidurai
• Chennai Strings and Sunshine Orchestra- conducted by VJ Srinivasamurthy at AM Studios, Chennai

The album received very positive response from critics. The film's background score received much critical acclaim upon release. The Soundtrack also marked the 25 year of collaboration of Rahman-Ratnam combo.

Professional ratings

Review scores
Source	Rating
Hindustan Times	[29]
Sify	[30]
Onlykollywood	[31]
Musicaloud	[32]
Bollywoodlife	[33]
Moviecrow	[34]

• Kaatru Veliyidai
• List of films directed by Mani Ratnam featuring A. R. Rahman