You may not decompile, disassemble, reverse engineer, or
otherwise reduce the Korg Software to a human-perceivable form,
except to the limited extent expressly permitted by applicable law.
In EC (where Heidar and I live) the directive says:
In the US the deal is (DMCA (17 U.S.C. § 1201 (f)):(15) The unauthorised reproduction, translation, adaptation or transformation of the form of the code in which a copy of a computer program has been made available constitutes an infringement of the exclusive rights of the author.
Nevertheless, circumstances may exist when such a reproduction of the code and translation of its form are indispensable to obtain the necessary information to achieve the interoperability of an independently created program with other programs.
It has therefore to be considered that, in these limited circumstances only, performance of the acts of reproduction and translation by or on behalf of a person having a right to use a copy of the program is legitimate and compatible with fair practice and must therefore be deemed not to require the authorisation of the rightholder.
An objective of this exception is to make it possible to connect all components of a computer system, including those of different manufacturers, so that they can work together.
Such an exception to the author's exclusive rights may not be used in a way which prejudices the legitimate interests of the rightholder or which conflicts with a normal exploitation of the program.
However, it may be the case that EULA in the US case can cause issues as it may override the DMCA (17 U.S.C. § 1201 (f) )(1) Notwithstanding the provisions of subsection (a)(1)(A), a person who has lawfully obtained the right to use a copy of a computer program may circumvent a technological measure that effectively controls access to a particular portion of that program for the sole purpose of identifying and analyzing those elements of the program that are necessary to achieve interoperability of an independently created computer program with other programs, and that have not previously been readily available to the person engaging in the circumvention, to the extent any such acts of identification and analysis do not constitute infringement under this title.
(2) Notwithstanding the provisions of subsections (a)(2) and (b), a person may develop and employ technological means to circumvent a technological measure, or to circumvent protection afforded by a technological measure, in order to enable the identification and analysis under paragraph (1), or for the purpose of enabling interoperability of an independently created computer program with other programs, if such means are necessary to achieve such interoperability, to the extent that doing so does not constitute infringement under this title.
(3) The information acquired through the acts permitted under paragraph (1), and the means permitted under paragraph (2), may be made available to others if the person referred to in paragraph (1) or (2), as the case may be, provides such information or means solely for the purpose of enabling interoperability of an independently created computer program with other programs, and to the extent that doing so does not constitute infringement under this title or violate applicable law other than this section.
(4) For purposes of this subsection, the term 「interoperability」 means the ability of computer programs to exchange information, and of such programs mutually to use the information which has been exchanged.
However, there is no "shrinkwrap" with EULA when you startup the kronos. As a matter of fact, buying a store sample or a used keyboard gives you no EULA-to-go - As my didn't.
As for breaching of any EULA, this is technically overrided by the official document received from Korg officials.
Since that go-ahead didn't come with any restriction as of its use it would be disputable if they could retract that in hindsight.
In the case of distributing modified code to enhance the software and to fix bugs, one never have to distribute korg software since all that is needed is a binary diff. This ensures that all that is distributed is the sole work of the distributor since it contains no other 3'rd party (i.e. korg) code.
I'm also curious to if what I've heard is true - That there exists modified keyboards, manufactured by korg, on the aftermarket where the OS has been altered to better suit arabic/asian countries and this without korg official involvement?
,... I need the room (yours' MRs. Sati)!" ... 
