
Before the narratives could be written down, they were chanted or sung. David C Rubin is a specialist in autobiographical memory and oral traditions and in his ground-breaking book Memory in Oral Traditions he explains how epic stories like Homer’s The Iliad and The Odyssey were passed down verbally using poetic devices. Music has been an important mnemonic device for thousands of years. It is already used to help dementia patients, the elderly, and for those suffering from depression. The relationship between music and memory is powerful, and new research is hoping to discover how these memories work for therapeutic effect. You can feel everything as if you were actually there.

This is an experience shared by everyone: hear a piece of music from decades later and you are transported back to that particular moment, like stepping into a time machine.

But were I deliberately to try and remember something particular from that holiday, without the music, I would recall nothing as immediate or emotional. I hear just one refrain from it – “It's a soul companion/ You can feel it everywhere” – and the late nights and sandy beaches come immediately to mind. It’s a tune by the German Eurodance group Snap!, that was played a lot one summer as I travelled across Europe. Paying cash or using an electronic wallet app is risky since there is no way to stop the payment if something goes wrong.Rhythm Is a Dancer’ is the song that does it for me. If you use a check, write it to a company, not an individual.
