The odor of raisins What would be the use, for instance, in giving the plan of the room that was really my room, in describing the little room at the end of the garret, in saying that from the window, across the indentations of the roofs, one could see the hill. I alone, in my memories of another century, can open the deep cupboard that still retains for me alone that unique odor, the odor of raisins drying on a wicker tray. The odor of raisins! It is an odor that is beyond description, one that it takes a lot of imagination to smell. But I've already said too much. If I said more, the reader, back in his own room, would not open that unique wardrobe, with its unique smell, which is the signature of intimacy. Gaston Bachelard, The Poetics of Space smellmemory
Phonaesthetics Phonaesthetics is the study of beauty and pleasantness associated with the sounds of certain words or parts of words. The term was first used in this sense, perhaps by J. R. R. Tolkien, during the mid-twentieth century and derives from the Greek: φωνή (phōnē, "voice-sound") plus the Greek: αἰσθητική (aisthētikē, "aesthetic"). Wikipedia en.wikipedia.org Sonorisms IGods of the Word euphony