San Francisco - Sonific, a provider of licensed music widgets and free music applications for social media, said on Tuesday that it will take its service offline "as a consequence of the unworkable music licensing situation and the resulting lack of solid revenue modeling," co-founder and CEO Gerd Leonhard wrote in a note on Sonific.com. The company had attracted 80,000 users to its service and amassed a library of over 200,000 licensed songs.