Rebirth Mantra.

According to Baidu, the Buddhist songs played in the mourning hall are called the Rebirth Mantra, also known as the Amitabha Buddha’s Fundamental Secret Mantra and the Four Nectar Mantra, which are generally used for keeping spirits up.

Buddhist songs, as the name suggests, refer to songs with lyrics based on Buddhist classics. Modern Buddhist songs include Shaolin meditation songs and so on.