Alison Cole does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Sound is something of an ephemeral phenomenon, existing in the moment that vibrations travel through the air. Those vibrations also exhibit distinct patterns, depending on frequency, which can be ...

Previous correspondence on this topic refers to the different patterns of overtones that enable us to distinguish one instrument from another. This isn’t the only factor involved. Many years ago when ...