In a statement (via Stereogum), Richard said of the new song:
“Mornin” starts out with my mother speaking about her love life, the fact that she’s only known one love, my father. The traditional use of live instruments and the melodic vocal production on the song signify the wholesome love that my parents have had over a lifetime.
“Mornin | Streetlights” shows the parallel of my love life with music. Structure and rules don’t exist in this type of love, so it was important for me to not only approach this song with a nontraditional structure and length, but also push the design of a what love song should sound like. ‘Mornin’ embodies tradition and soul, and ‘Streetlights’ represents the future. I felt like the songs couldn’t be separate and needed to be together, so I created it as one song; the past and future can exist together within one record.