Twitter, Pinterest Co-Founders Back Swedish Audio Startup Chroma

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Twitter Inc. co-founder Isaac “Biz” Stone and Pinterest Inc. co-founder Evan Sharp are among the backers of a Swedish startup striving to create a new type of audio entertainment, built specifically for mobile devices.

Stockholm-based Chroma Studios AB recently raised 5.1 million euros ($5.4 million) from individuals including Stone, Sharp and Ben Silbermann, co-founder and chief executive officer of Pinterest, in a seed round led by venture capital firms Singular and Adjacent. Berlin-based angel syndicate SpotiAngels also took part.