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 INTERNATIONAL CONVENTIONS 615

[Article X, par. 2]

It is agreed that, in the application of the present article, the tribunals of the various countries of the Union will, if there is occa- sion, take into account limi- tations of their respective laws.

Protocol

3. It is understood that the manufacture and sale of instruments forthemechan- ical reproduction of musical airs which are copyright, shall not be considered as constituting an infringe- ment of musical copyright.

Article 13

Authors of ■ musical works have the exclusive right to authorize: (i) the adaptation of these works to instruments serving to reproduce them mechani- cally; (2) the pubUc per- formance of the same works by means of these instruments.

The limitations and con- ditions relative to the ap- plication of this article shall be determined by the domestic legislation of each country in its own case; but all limitations and conditions of this na- ture shall have an effect strictly limited to the country which shall have adopted them.

The provisions of par- agraph I have no retroac- tive effect, and therefore are not applicable in a country of the Union to works which, in that coun-

Adaptation of musical works to mechanical instruments

Each coun- try to regu- late for itself the manner in which Convention shall apply

Provision not retroac- tive