at The Drumclub, but Swire's hard drive failed. Harding offered to play their music instead which was received well. They sat down with each other and decided to produce music together under the name Pendulum. The first track the trio produced was 'Vault', which would be released in 2003 on 31 Records to great acclaim within the UK drum & bass scene. At that moment they were residing in Perth, but they felt isolated from the drum & bass community. Once fellow drum & bass artist DJ Fresh offered them free accommodation in his London flat for eight months, they decided to move to England. The band also recorded and released 'Spiral / Ulterior Motive' the same year, and in 2004 made their first compilation appearance on 'Jungle Sound: The Bassline Strikes Back!', with several songs featured and Harding in charge of mixing the album's second disc. The band was offered an album deal by Breakbeat Kaos, Fresh's label, which resulted in their debut album Hold Your Colour in 2005. The album charted in both the United Kingdom and in Australia and was certified as a golden album in Australia. Following the success of their 2005 debut album, their label Breakbeat Kaos re-issued the compilation under the name Jungle Sound Gold, the front now saying "mixed by Pendulum". The band disapproved of this as they had neither given permission nor been informed about the release, and Pendulum later ended up leaving the label. In 2006, the trio became a sextet after introducing Ben Mount as their MC, Peredur ap Gwynedd as their guitarist, and Paul Kodish as their drummer. At this time McGrillen began playing bass guitar at live shows and on some studio recordings. 2007–2009: In Silico and Live at Brixton Academy Pendulum's second album, In Silico, was released on 12 May 2008. This release contained different sounds compared to their debut album, as it contained more rock elements whilst maintaining their electronic elements. The response to this change was relatively positive from critics, but was called "a little dated" by The Guardian. The album was relatively successful as it charted at 2 on the UK Albums Chart and at 9 in the Australian Albums Chart. The album reached No. 16 on Billboard's Top Electronic Albums chart in the United States. In November 2008, three songs from the album In Silico were used in the soundtrack of Need for