Minecraft led to Persson becoming one of "Forbes" "World's Billionaires". "Minecraft"s music and sound effects were produced by German musician Daniel Rosenfeld, better known as C418. The background music in "Minecraft" is instrumental ambient music. On 4 March 2011, Rosenfeld released a soundtrack, titled "Minecraft – Volume Alpha"; it includes most of the tracks featured in "Minecraft", as well as other music not featured in the game. The video game blog Kotaku chose the music in "Minecraft" as one of the best video game soundtracks of 2011. On 9 November 2013, Rosenfeld released the second official soundtrack, titled "Minecraft – Volume
Minecraft in five weeks. The release of the game's PlayStation Vita version boosted "Minecraft" sales by 79%, outselling both PS3 and PS4 debut releases and becoming the largest "Minecraft" launch on a PlayStation console. The PS Vita version sold 100,000 digital copies in Japan within the first two months of release, according to an announcement by SCE Japan Asia. By January 2015, 500,000 digital copies of "Minecraft" were sold in Japan across all PlayStation platforms, with a surge in primary school children purchasing the PS Vita version. "Minecraft" helped improve Microsoft's total first-party revenue by $63 million for the 2015 second