An archival snapshot of the BBC drama’s soundtrack, Various Artists compiles period-inflected cues on BBC Music — shadowy library music, chamber-string arrangements and jazz-inflected salon numbers that evoke 1930s radio. Tempos shift from languid midtempo ballads to sprightly 120–140 BPM swingers, with close-miked brass, plucked harp and warm tape hiss lending a film-noir undercurrent. Collectors of soundtrack, library music and vintage jazz reissues will find BBC Music’s sequencing a handy source of DJ-ready atmospherics.