## mathematics and music

Survival modelling of albums in the Top 100 casts light on the impact of file sharing

**Benjamin Wardhaugh**tells us about one of the more unusual places you might find Euclid's algorithm being used.

Mathematicians and artists mingle in London

**Nick Collins**talks to

*Plus*about his artificial musician.

**Jeffrey Rosenthal**follows Galileo's observation that the entire universe is written in the language of mathematics - and that includes music.

**Jim Woodhouse**and

**Paul Galluzzo**explain why.

*Plus*, Marcus du Sautoy continues his exploration of the greatest unsolved problem of mathematics: The

**Riemann Hypothesis**.

*Plus*about how he uses mathematics to understand music, and how he managed to combine his passions for music and computing to create a successful career.