Music streaming service Rdio has acquired competitor TastemakerX, enabling an exit for investors including AOL Ventures.

TastemakerX, a US-based online platform where users can share and curate music, was been acquired by music streaming service Rdio on Monday for an undisclosed amount, providing an exit for AOL Ventures.

AOL Ventures, which acts as the corporate venturing fund for internet and media corporation AOL, invested in TastemakerX’s $1.8m series A round in February 2012, and its March 2013 series B, which raised $1.3m.

Other investors in TastemakerX include investment firms Baseline Ventures and Tekton Ventures, venture capital…