Walker worked with several record producers on the album, including Richard Vission, Chico Bennett, Nicholas "RAS" Furlong and Static Revenger, among others.

[2] In an interview with Nathan Taylor from Western Weekender, Walker explained, "The last album was more serious and showed the deeper parts of me.

"[2] The album was inspired by many sounds from around the world, including Indian Bollywood to UK bubble gum pop and Māori culture.

[2] Let the Music Play also includes a duet with fellow singer Jessica Mauboy on the track "Galaxy", which had originally appeared on a re-release of her second studio album Get 'Em Girls.

"[4] In an interview with Leesa Smith from Southern Courier, Walker explained, "The album is quite pop and dance-y, but there are hints of old skool stuff, like the duet I did with my mum.

[9] During a promotional tour in New Zealand, Walker appeared at The Warehouse Sylvia Park in Auckland on 24 November 2011, to sign CD copies and perform a song from the album.

[1] On 29 November 2011, Walker and Jessica Mauboy made a guest appearance on the Australian breakfast television program, Sunrise, to perform "Galaxy".

[17] Let the Music Play debuted at number 18 on the Australian ARIA Albums Chart on 28 November 2011 and spent two weeks in the top 50.