Phonopy is an open source package for phonon calculations at harmonic and quasi-harmonic levels.
Phono3py for phonon-phonon interaction calculations has been released as an open beta version. See the document at http://phonopy.sourceforge.net/phono3py/ .
Selected features of harmonic and quasi-harmonic phonons are:
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New BSD from version 1.3.
(LGPL from ver. 0.9.3 to version 1.2.1., GPL to version 0.9.2.)