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<p>There's a free online lecture tomorrow (Tuesday 13 October) at 1pm UK time on 'The Mathematics of Musical Composition', given by Professor Sarah Hart. See <a href="https://www.gresham.ac.uk/lectures-and-events/maths-music" target="_blank" rel="noopener noreferrer">https://www.gresham.ac.uk/lectures-and-events/maths-music</a> for more details, including registration. The description says:</p>
<p>"This lecture will explore the mathematics of musical symmetries, such as the “translational symmetry” of the transposition of keys, and the “rotational symmetry” of the duet “Der Spiegel”, attributed to Mozart. It will go on to explore the last century’s experimentation with the use of mathematical forms to produce intriguing effects, including in the works of Arnold Schoenberg and Per Nørgård"</p>
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<p>Even more relevant, the same presenter will be giving a further lecture in the same series at 1pm of Tuesday 5 January 2021, on 'The Mathematics of Bell Ringing'. See <a href="https://www.gresham.ac.uk/lectures-and-events/maths-bellringing" target="_blank" rel="noopener noreferrer">https://www.gresham.ac.uk/lectures-and-events/maths-bellringing</a> . Here,</p>
<p>"This lecture will look at change ringing, which is ringing a series of tuned bells (as you might find in the bell tower of a church) in a particular sequence, and this has exciting mathematical properties. We will also ask: why are bells bell-shaped? What properties of this shape create the sound of a bell, and by what amount should we scale the size of a bell to produce changes in pitch?"</p>
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<p>Has anyone interacted with Prof Hart before?</p>
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