Vancouver-based indie-rock artist Night Hymns recently unveiled his new single, “Blue Bottle,” a song about living as a ‘happy fly’ rather than ‘free as a bird.’ Night Hymns explains, “I got the idea in a café called ‘Blue Bottle’ on a trip to San Francisco. The name just tickled me because it reminded me of a fat fly, probably because the café was not located in the tidiest corner of the city.” A self-taught guitarist, Night Hymns, aka Wei, calls himself a “latter-day slacker rocker” who only picked the guitar to play rock and roll. To him, the concept of taking guitar lessons seems odd. If rock music didn’t exist, he would be doing something else. Last year, Night Hymns released three singles, including “Shine On,” “Sans souci,” and “Araby,” which collectively amassed more than 120...