GABE JACOBS, AMADOU CROOKES, AND MARIO GOMEZ-HALL, ALL A15, COFOUNDERS
BIG IDEA: An Instagram for music. Users post links to whatever song happens to move them at the moment, with album art. They can set up a personal profile, get a home feed, and share comments, likes, tags, and hashtags. They can also follow other users and be followed themselves. "The whole thing works as a sort of living playlist, curated by the ears you trust," as the cofounders put it on the Cymbal website.
STATUS: Jacobs, Crookes, and Gomez-Hall developed Cymbal when they were still students at Tufts, launched it last March, and had it go live on Apple's App Store by May. It was downloaded at least 17,000 times in just a few months, according to Forbes. The cofounders recently moved their offices to Brooklyn and are at work on an Android version of the app. cymbal.fm