The London label Blackest Ever Black has, in a very short period of time, garnered an unassailable reputation as an outlet for bleak, moody music that’s carefully crafted and improbably moving. The first song from the forthcoming album by Swedish duo Bremen only serves to reinforce that identity. It’s a beautiful, haunting composition. Lanchy Orre’s guitar surges slowly, like soft light steadily glowing and receding far off on a black horizon. Beneath it, Jonas Tiljander trips out a delicate half-melody on piano, short, scattered notes that suggest a song without ever fully constructing one. It’s quietly sorrowful, the cold, repeated pang of regret, translated into music.