Spotify and The Echo Nest have a new API integration. Sure, there were plenty of app integrations between the two before, but now a combined API offering should make things easier on developers.

“Integrating Spotify’s artist and song IDs creates an efficiency where the developer now only has to use one ID structure to have access to The Echo Nest’s rich music data platform along with the streaming music of Spotify as well as our other partners in Rosetta Stone,” Shane Tobin, Director of Strategic Partnerships at The Echo Nest tells WebProNews.

Rosetta Stone, if you’re not familiar, is a service that translates song and artist identifiers between music content and data APIs, including Twitter, Facebook, Lycicfind, MusixMatch, 7Digital, EMI, Free Music Archive, MusicBrainz, Rdio and Seatwave. The Echo Nest says it also makes it easy to leverage its core music discovery and personalization features within a Spotify app.

Twitter connects verified accounts to it to enable developers a way to integrate tweets from artists into their apps.

With the new API integration, apps can play display lyrics while playing songs, for example. Tweets and Facebook updaters from artists can be displayed, as can ticket offers. There are plenty more possibilities, and they stand to make Spotify better for users, depending on the apps they use.

Spotify revealed its third-party app platform last last year. “Spotify has called its app platform the company’s biggest announcement since it launched, and rightfully so,” a representative from The Echo Nest tells us “In the first three months that Spotify apps were available, music fans listened to over 1,500 years of music within them.”

“Giving the best app developers the tools to create amazing music apps is one of many areas where Spotify and The Echo Nest are driving the digital music industry forward,” she adds.

The Echo Nest believes every Spotify app that relies on playlisting, personalization or discovery can benefit from the partnership.