After dropping the ‘Markus Schulz Presents…’ on 2014’s lower-key ‘CLXXV’, ‘Cathedral’ sees the prefix (significantly perhaps) restored. The Montreal stopover for 2015’s ‘City Series’, the track’s a dark, vast, roaming affair, which delights in its own murk. Lower-end frequencies induce polygraph-like levels of tension, while break-side, its ominous, analogue, John Carpenter-like synth bursts further amplify the theme.