Maths and Music

On rational and irrational numbers, strings and harmony

MSI presents a public lecture by Professor Uri Onn on Harmony, rational and irrational numbers, and their relationships in music.

schedule Date & time
Date/time
1 Oct 2025 6:00pm - 1 Oct 2025 8:00pm
person Speaker

Speakers

Uri Onn
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Akrti Tyagi
Communications, Outreach and Engagement

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Description

Join us for a Public Lecture by Professor Uri Onn from the Mathematical Sciences Institute (MSI), at the Australian National University as part of National Science Week.

Abstract

This lecture aims at introducing the general audience to a beautiful relationship between maths, physics and music. We will explore the evolution of ideas that led to the equal temperament, the 12-note system which prevails in much music worldwide. The main characters in this story are the wave equation in a string and its pure solutions, which are given by waves with integral periods; the relations between them which are rational numbers; and finally, a twist in the plot where equal temperament is actually done with irrational numbers to achieve symmetry.

Speaker

Uri Onn

Musicians

John Mackey - Tenor Saxophone

Lachlan Coventry - Guitar

Damien Slingsby -  Piano

Ben O’Loghlin - Double Bass

If you require accessibility accommodations or a visitor Personal Emergency Evacuation plan please contact the event organiser.

Location

Llewellyn Hall, Building 100, William Herbert Pl, Canberra ACT 2601

-35.280391911236, 149.1234425