Directed by Fajar Bustomi, the film featured children's songs reinterpreted with choral arrangements by Fero Aldiansya Stefanus and performed by the Purwa Caraka Music Studio Choir, conducted by Jessica Fedora Amadea.

The Purwa Caraka Music Studio Choir performed all of the songs for the film, marking their first collaboration with Falcon Pictures.

In the soundtrack session, the director Fajar Bustomi felt its songs "heartwarming" and "nostalgic", when they were heard in the film, it brings the majestic ambience.

[4] A cover of "Dengan Menyebut Nama Allah", written by Dwiki Dharmawan and Ags Arya Dipayana and performed by the Purwa Caraka Music Studio Choir, was heard in the film, but not included in the soundtrack or separately released.

At the 2017 AMI Awards, Surat Kecil untuk Tuhan won the Best Children's Album, losing other nominees including the Lovely Kids for Bandar Udara.