I believe anything that combines more than one of our five senses is more impactful, especially with memory. I have found this with scent, such as aromatherapy, as well as sound, like with music. Like Carnation, I like lavender and was surprised at how relaxed I was when I used some drops in my aromatherapy steam machine. It helped me calm down at the end of the day. When I smell the perfume my mom used to wear, I get teary. I love freshly cut grass, coffee, the ocean, and bacon!! All smells that cheer me up.

With sounds, music can trigger memories more intensely than just thinking of the memory. Also touch, taste, etc.