plate from which the contrivance was directly or indi- rectly derived, and the person who was the owner of such original plate at the time when such plate was made shall be deemed to be the author of thework, and, where such owner is a body corporate, the body corporate shall be deemed for the purposes of this Act to reside within the parts of His Majesty's dominions to which this Act extends if it has es- tablished a place of business within such parts.
(2) It shall not be deemed to be an infringement of copy- right in any musical work for any person to make within the parts of His Majesty's dominions to which this Act extends records, perforated rolls, or other contrivances by means of which the work may be mechanically performed, if such person proves —
(a) that such contrivances have previously been made by, or with the consent or acquiescence of, the owner of the copyright in the work; and
(b) that he has given the prescribed notice of his inten- tion to make the contrivances, and has paid in the prescribed manner to, or for the benefit of, the owner of the copyright in the work royalties in respect of all such contrivances sold by him, calculated at the rate herein-after mentioned :
Provided that — (i) nothing in this provision shall authorize any alter- ations in, or omissions from, the work reproduced, unless contrivances reproducing the work subject to similar alterations and omissions have been previously made by, or with the consent or acquiescence of, the owner of the copyright, or unless such alterations or omissions are reaisonably necessary for the adapta- tion of the work to the contrivances in question; and
(ii) for the purposes of this provision, a musical work shall be deemed to include any words so closely asso- ciated therewith as to form part of the same work, but shall not be deemed to include a contrivance by means of which sounds may be mechanically reproduced.
(3) The rate at which such royalties as aforesaid are to be calculated shall —