Librify is described as 'digital music service that gives you free access to hundreds of millions of songs directly from your browser' and is an app in the Audio & Music category. There are more than 10 alternatives to Librify for a variety of platforms, including Online / Web-based, Windows, Android, iPhone and iPad. The best alternative is Spotify, which is free. Other great apps like Librify are Last.fm (Freemium), Deezer (Freemium), Pandora (Freemium) and Libre.fm (Free, Open Source).
Last.fm is a music community website that offers personalized internet radio, using a recommendation system called "Audioscrobbler" to build a detailed profile of users based on their music tastes and interests.
Deezer is an Internet-based music streaming service. It allows users to listen to music content from record labels including EMI, Sony, Universal Music Group, and Warner Music Group on various devices online or offline.
Pandora Radio is a free (ad-supported) internet radio founded in 2000. Using the Music Genome Project, over 400 attributes of songs are analyzed in order to personalize radio stations from music you like.
Slacker Radio is like last.fm - it builds personalized radio stations. You get to rate songs and artists as "like" and "hate" to make them appear more frequently or to ban them from your radio station.