See https://librosa.org/doc/ for a complete reference manual and introductory tutorials.
We also have a developer blog.
The latest stable release is available on PyPI, and you can install it by saying
pip install librosa
librosa is also available as a conda package. You can install it by saying
conda install -c conda-forge librosa
Please direct non-development questions and discussion topics to our web forum at https://groups.google.com/forum/#!forum/librosa