When you are listening to music, use aromas to form novel associations between smells and sounds. Instead of using a visual stimulation, this exercise associates auditory stimulation (music) with a specific odor. Start by choosing an odor canister (either deliberately or at random) and a favorite song on a CD or tape. Open the odor canister and take a good sniff every time you listen to that song. Imagine pairing pine odor with a country-western ballad, lavender with the first movement of Beethoven's Sixth Symphony, or cloves with Muddy Waters singing the blues. Be creative with your sound-smell combinations. Try some odd pairings and see what kinds of new associations spring to mind.
The goal here is not to remember anything specific, but to provide more raw material to provoke your brain into weaving more associative networks. Both music and smells are powerful stimuli that evoke different emotions. Normally we don't listen to music in the context of odors or vice versa. In this exercise, the repeated pairing of these two stimuli makes your brain create powerful links between the two, increasing the number of pathways available for storing or accessing memories.