Calvin Harris has finished as the top hit songwriter in the UK for a second successive year, according to exclusive Music Week research.

The Scottish DJ and producer tops our exclusive countdown based on writing shares of the Official Charts Company’s top 100 downloads of 2012 after a run of successes including solo singles Let’s Go (with Ne-Yo), We’ll Be Coming Back (with Example) and Sweet Nothing (with Florence Welch) plus penning Cheryl’s chart-topping Call My Name and hits for ...