Keeping Essentia in constant development, we are glad to announce that Essentia 2.1 beta3 has been recently released. It is a preliminary version of the forthcoming 2.1 release and is the version recommended to install. This version includes a very significant amount of new algorithms, updates, bug-fixes and documentation improvements. The full list of changes can be seen here.
We are now hosting static binaries for a number command-line extractors, originally developed as examples of how Essentia can be used in applications. These tools make it easy to compute some descriptors and store them to a file given an audio file as an input (therefore, called "extractors") without any need to install Essentia library itself.
In particular these extractors can:
Today, June 27th 2013, Essentia becomes Open Source Software and we start distributing it using the Affero-GPLv3 license (also available under proprietary license upon request).