Summary heatmaply is an R package for easily creating interactive cluster heatmaps that can be shared online as a stand-alone HTML file. Interactivity includes a tooltip display of values when hovering over cells, as well as the ability to zoom in to specific sections of the figure from the data matrix, the side dendrograms, or annotated labels. Thanks to the synergistic relationship between heatmaply and other R packages, the user is empowered by a refined control over the statistical and visual aspects of the heatmap layout.Availability and implementationThe heatmaply package is available under the GPL-2 Open Source license. It comes with a detailed vignette, and is freely available from: http://cran.r-project.org/package=heatmaply.Supplementary information Supplementary data are available at Bioinformatics online.

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The use of information and communication technologies (ICT) in schools is now commonplace and, for many, an unquestionable part of everyday teaching and learning. But detailed studies of the use of ICT in classroom-based music education are rare. This article explores how pupils aged between 11 and 16 used ICT to create and perform music in new ways. Working as a teacher-researcher, the author used the methodologies of action research and case study to investigate how pupils engage with and organise sounds with ICT.

His main research interests lie in the field of developing innovative uses of new technologies within the music curriculum. He is Managing Director of UCan.tv (www.ucan.tv), a not-for-profit company that produces engaging educational software and hardware including Sound2Picture (www.sound2picture.net), Sound2Game (www.sound2game.co.uk) and Hand2Hand (www.hand2hand.co.uk). Free Moodle courses are available at www.ucan.me.uk.

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