Abstract
The fourth CHARM symposium was held at Royal Holloway in Egham from 12 to 14 April 2007, and focused on methods for analysing recordings. The symposium provided valuable insight into ongoing developments with analytical methods and their applications, but also highlighted numerous issues that still need to be confronted. For instance, the choice and suitability of a method, how to analyse data extracted from recordings, and how to interpret and evaluate findings are questions facing researchers across the entire spectrum of expertise. In addition, the broader implications of interdisciplinary cross-over beg further consideration, such as how profitably to exchange methodologies between different research domains.