I feel you on the "overaching tone" description.

Lavender takes me back to when I was about 6-7 years old, sitting at home, on the deck with mum and dad; we grew a bunch of lavender to the side of the deck and the smell will always give me a pleasant nostaglia kick to a time where I had zero qualms with the world!

Deep Heat instills me with a rather confusing number of "feelings". It's the undertone for every rugby game I've ever played - anxiety, camaraderie, adrenaline, pain, exaltation and many more. If I smell it in the gym before or after my training sessions I'll immediately get a little burst of energy and the world seems a little brighter with fond memories of thrashing my body up and down a park.

Vanilla will remind me of the times I spent drunkenly playing Battlefield with my good friend when we were students. Wednesday was pint night at our local and we would gear ourselves up to be in social settings by playing the game and drinking for every death. He always had a vanilla scented candle or plug-in device in - he says it's a follow-on from his parents place, so now when I visit his family in pleasant surroundings I'm often brought back to tipsy giggling and gunfire.

Music is a whole 'nother world as far as tones and moods go. Far too many to write down here without rambling away but one that suddenly leapt to mind was the Final Fantasy 7 Prelude music - here

My brother and I first got the game by chance when Mum was in the city and she saw it in a game store, thinking we might like it (we were avid but budding gamers and Mum was always keen to see us try something different) I was 7, my brother approaching 9. Never played a game that struck so many different chords as this - the music will jolt moments where he and I would play and endeavour to beat the ridiculous bosses (for a 7 year old) and all the bonding that occurred.