How to Build an Accord: The Small Pairings That Make a Perfume Feel Whole

An accord is two or three notes that stop sounding like themselves and start sounding like one new thing. A guide to building your first accords at home — and the classic Indian pairings to start from.

Aanya RaoPublished February 18, 2025Updated June 15, 20269 min read
How to Build an Accord: The Small Pairings That Make a Perfume Feel Whole

The first time someone said the word 'accord' to me in a perfumery class in Grasse, I nodded the way you nod when a doctor uses a long Latin word and you do not want to look stupid. It took me an embarrassing number of weeks to realise it is one of the simplest, most useful ideas in the craft.

An accord is what happens when you put two or three oils together and they stop reading as individual notes. They braid into one new thing your nose can no longer un-braid. Rose and oud is the most famous example — together they are not 'rose plus oud', they are a third smell that has its own name in every Middle Eastern souk.

Most commercial perfumes you love are built on three or four core accords, dressed up with a top note or two for theatre. Once you start hearing the accords instead of the marketing copy, the whole shelf at any beauty hall suddenly makes a different kind of sense.

The easiest way to feel this at home is the two-drop test. Put one drop of oil A and one drop of oil B on a blotter, hold it close, and breathe out slowly through your nose before you breathe in. If you can still cleanly identify both, it is a mixture. If a third smell shows up that is neither, you have an accord.

A few pairings that almost always reward beginners. Sandalwood and cardamom — warm, milky, a little sweet, the smell of South Indian kitchens at dusk. Rose and saffron — a Mughal classic, slightly leathery, surprisingly modern. Vetiver and bergamot — clean, green, very 90s minimalism. Jasmine and sandalwood — the Indian wedding accord, the one your mother probably wears without knowing.

Building your own from a DIY perfume kit is mostly about restraint. Three oils, max, for your first accords. The temptation when you have eight pretty bottles in front of you is to use all eight. Resist it. Some of the best blends I have smelled from Whiff & When customers were two-note accords with one floral lift on top, and nothing else.

There is a small ratio trick worth knowing. Base notes are dense and slow. If you do a 1:1:1 ratio across top, heart and base, the base will eat the other two within an hour. A starting accord that holds its shape better is usually 3:2:1 — three parts top, two parts heart, one part base. Then taste it on skin and adjust by half-drops.

The Signature Kit is set up specifically for accord-led blending — fewer oils, more refined ones, each one chosen because it pairs cleanly with at least two others in the box. It is the kit I recommend to people who already know what they like and want to stop guessing.

An accord is, in the end, a tiny act of editing. You are deciding which notes get to speak together and which ones get cut from the scene. The first time you build one that actually works, you will smell it on your wrist three hours later and feel quietly stupid that you did not start blending sooner.

"An accord is the moment two oils stop arguing and start finishing each other's sentences."
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Written byAanya Rao

Editorial Lead, Whiff & When

Aanya writes about Indian perfumery, scent memory and the slow craft of building a signature fragrance. She has been blending at home for over a decade and leads editorial at Whiff & When.

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