Serial entrepreneur Brenden Mulligan, best known for founding ArtistData (acquired in 2010 by Sonicbids) and Onesheet (acquired in 2013 by Bandzoogle), is working on a new service aimed at giving musicians a new way to interact with their fans. Mulligan has been largely out of music-tech over the past year, focusing instead of private photos sharing app Cluster, which he and a small team raised $1.6 million for last August. Although the project is still in stealth, Mulligan shared the following details: “Since launching Cluster, we’ve been inundated with requests from musicians who want to use the app with their...

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