Recording data for the hypothesis that increase and decrease descriptions are decoupled:
Increase Descriptions[edit]
Wiki note: Specific increases observed: 11, 17, 24, 28, 31, 32, 34, 35, 38, 42, 45, 46 (2x), 49, 54 (2x), 56, 58 (2x), 59, 61, 63, 68, 69 (4x), 70, 73 (2x), 76 (3x), 79 (2x), 80, 81, 83, 86 (4x), 87 (3x), 88, 91, 94, 95, 97, 98, 99 (2x), 100
Levels  Airs of the Khanate


11  A lightbulb flickers and burns out. 
17  A stray mutt leaps into a canal, escaping the clutches of a dogcatcher. 
24  Waves lap at the edges of a canal. 
28  Music streams in from an apartment above – the telltale scratching of a phonograph cylinder. 
31 – 34  Wind from the North streaks through the streets. 
35 – 38  A stray wave shoves a watertaxi off its course. The driver is already arguing with a bargepilot before their vessels collide in earnest. 
42  Streamers strung between buildings, fluttering in the wind. 
45 – 49  The façade of a musichall: a blinding wall of lightbulbs surrounding a marquee in Khaganian script. 
54  A dog barks, alone in the distance. 
56 – 59  Rattus faber in tiny overalls crawl over a marquee, replacing burntout lightbulbs. 
61 – 63  The smell of tobacco wafts from a nearby building. 
68 – 69  A few WhiteandGold officers with hammers smash up a box of confiscated mirrors. 
70 – 73  Something slithers in the canal – a shark? 
76 – 79  A watertaxi driver ties his boat to a bollard. "Can't take you," he tells a pedestrian dressed as a Londoner. "Need to charge the batteries." 
80 – 88  Skewers charring on a street vendor's grill: mushrooms, pork belly, prawns. 
91 – 100  A grassy scent fills the street from a samovar in a teahouse. 
Decrease Descriptions[edit]
Wiki note: Specific decreases observed: 3, 4 (2x), 6, 7, 8 (3x), 12 (2x), 14 (2x), 16 (2x), 17, 18 (2x), 19 (4x), 21, 22, 23 (3x), 24, 27, 29 (2x), 31, 34 (2x), 38, 40, 44, 47, 48, 50 (2x), 52 (2x), 53, 55, 56, 58, 59, 61 (2x), 64, 67, 68, 69, 77, 81, 83, 86
Levels  Airs of the Khanate


3 – 8  Whiteandgolds wander the streets in pairs, their uniforms gleaming in the electric light. 
12 – 14  A lightbulb flickers and burns out. 
16 – 19  A stray mutt leaps into a canal, escaping the clutches of a dogcatcher. 
21 – 24  Waves lap at the edges of a canal. 
27 – 29  Music streams in from an apartment above – the telltale scratching of a phonograph cylinder. 
31 – 48  A stray wave shoves a watertaxi off its course. The driver is already arguing with a bargepilot before their vessels collide in earnest. 
50 – 86  Something slithers in the canal – a shark? 
Unaltered[edit]
Wiki note: Probably not a whole separate table, so just listing observations until I'm sufficiently convinced these belong on the increase table OR a counterexample is found
 50: A dog barks, alone in the distance.