The Trained Nose

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Light Blue against Halloween Blue Drop

One number per era rather than one number overall — two fragrances can be near-identical at the opening and different things by the evening, and an average hides exactly that.
Dolce&Gabbana

Light Blue

· lasts about 6.0 h
Read the entry Centre the map here
Halloween

Halloween Blue Drop

· lasts about 7.2 h
Read the entry Centre the map here

How close, and when

Across a whole wearing, Dolce&Gabbana Light Blue and Halloween Halloween Blue Drop are related, not interchangeable. They are nearest during the drydown and furthest apart in the opening, which is the part a single figure would average away.

42% opening · 0–1 h
44% heart · 1–3 h
56% drydown · 3–8 h
Measured across all twenty-four facets, from the notes below — not from the families on the boxes. They share 3 of 14 materials, which is worth holding beside the figures: a pair can share almost nothing and still converge, because different materials can smell of the same things.

What AKIN predicts

AKIN predicts these two are alike, and the evidence behind that is substantial.

Two signals sit on this page and are never averaged: what the note pyramids measure these two to share, and what AKIN’s resemblance graph predicts. Where they part, that is the finding rather than a fault.

The pyramids, side by side

Compared by material rather than by spelling, so a note recorded two ways is not counted as a difference.
top
Light Blue only — Apple, Bellflower, Cedar, Sicilian Lemon
Halloween Blue Drop only — Green Apple, Lavender
heart
both — Jasmine
Light Blue only — Bamboo, White Rose
Halloween Blue Drop only — Violet
base
both — Amber, Musk
Light Blue only — Cedar
Halloween Blue Drop only — Cinnamon

Other comparisons worth reading

Pairs involving one of these two where the notes are fully recorded on both sides and AKIN has enough evidence for the pair to be worth reading.