WhoSampled offers an extensive database of songs, samples, covers, remixes, artists, and more. According to its website, it's now tracking more than 1.2 million songs and nearly 622,000 samples. That data is powering Spotify's latest features, like its upcoming music discovery tool SongDNA.
This really, really sucks. WhoSampled is awesome, especially for sample heavy music from the 80s and 90s. They’ve been around over a decade, weird to call them a startup. While I am pissed, if Spotify came and offered me a truck load of money for something I was running and probably making little to no money, I can’t say it wouldn’t be tempting.