Harmonograph : A Visual Guide to the Mathematics of Music (by Anthony Ashton) Coding theory & cryptology For November’s the month when

For November’s the month when things take a turn for the worse: accidents

he stumbles upon an ancient evil he is unprepared to face

swimmers and canoeists - and are interlinked with historic and mythic voices: drowned voices

'Excellent' NEW SCIENTIST

In Inventing the Renaissance

Harmonograph : A Visual Guide to the Mathematics of Music (by Anthony Ashton) Coding theory & cryptology For November’s the month whenWhy did Pythagoras pause outside a Blacksmith's workshop? Can the nature of Harmony really be understood visually? Why do harmonies leave gaps or 'commas' when added together? In this charming little book Anthony Ashton uses a Victorian device called a Harmonograph to tell the story of Harmony and the intervals in the scale. With useful appendices and exquisite line drawings this is a unique and original introduction to this magical subject. WOODEN