memories of sounds and scents

I started playing the music files on my laptop in random mode, by means of my VLC script.
The first thing it played was the recording of grandma speaking about Boston. After only a couple seconds of hearing that, in my mind I could smell the sweet scent of unsmoked pipe tobacco; that was what I remember grandpa smelling like. It is funny how hearing a voice from the past can trigger the memory of a scent.