Parag Chordia, director of the Music Intelligence Group, sings into his mobile app LaDiDa, a reverse karaoke mobile technology that was commercialized with assistance from Venture Lab. 

According to Chordia, the state-of-the-art algorithms analyze the pitch and structure of the vocal input to compose a matching accompaniment.

LaDiDa has been a top 10 music app in the iTunes app store for the past six months (as of December 2010) and its demo videos have received over 55 million views.