According to a press release from 12Tone Music, these three parts represent three lunar phases of self-exploration: crescent moon (innocence, curiosity, embarking); half-moon/eclipse (loss of hope, disillusionment); and the full moon (self-discovery, strength).
Speaking on the title of the album, Zefanya stated in an interview with Hypebae[4] The word “moonchild” came to me when I was going through a phase of being up at ungodly hours of the night strictly to write music.
I realized how much more energized and stimulated I felt at night compared to the day, and I referred to myself as some “child of the moon” because of it.
"The album was originally scheduled to be released in late 2019, but was pushed back a year later on 10 September 2020.
On 10 October 2020, Zefanya held a virtual livestream concert titled the Moonchild Experience.