The untesting of songs downloaded from the iTunes Music Store with PyMusique is an unintended consequence, not the reason for the software release. This is the justification that Cody Brocius, one of the software authors able to make purchases on Apple's online music store without going through the iTunes interface, defends his work.
The explanation provided by Brocius appears to be credible, given that one of FairPlay's tasks is precisely to link listening permission to a specific computer. Equally reasonable, at least formally, does the position of those who claim as a result of this aspect that PyMusique is not a real software for track fragmentation. Less shared, in the opinion of some experts, are the consequences drawn by the authors of the software that all this means that from a legislative point of view the software is perfectly legal.
Some lawyers, in particular, point the index to the conditions of use of the iTunes Music Store for which Apple only provides access through iTunes. It should also be the case for the authors that PyMusique, in one way or another, bypasses and bypasses the music protection system, an action explicitly prohibited by the Millennium Copyright Act, the framework law that establishes in the US what and what cannot be done in managing digital rights.
At the moment, two days after the release of PyMusique, Apple seems not to have taken any position yet, but it seems certain that something will happen. If, in fact, it is true that the software is not available in the installer version for Mac OS X (you must know the Python programming language to use it) just as true that Windows users, in addition to Linux ones, can use it without excessive problems. Not to mention that due to the explicit admission of Jon Johansen it is not necessary to be very expert programmers to quickly create even a Mac version.