Poster for the Netflix series Dear Child, scored by Gustavo SantaolallaDear Child

Dear Child (Liebes Kind) is a six-part German psychological thriller that landed on Netflix in September 2023. It was a genuine phenomenon: 52.5 million views and 253 million hours in its first months, making it Netflix’s second most-watched title of late 2023.

The series begins with a woman escaping a windowless house where she and two children are held captive. After a car accident, police link them to a missing-persons case that has gone cold for 13 years.

Gustavo Santaolalla scored the series with Juan Luqui. “Brand New Day” is a pretty fingerstyle acoustic piece that…