532 COPYRIGHT
(6) For the purposes of this section, the Board of Trade may make regulations prescribing anything which under this section is to be prescribed, and prescribing the mode in which notices are to be given and the particulars to be given in such notices, and the mode, time, and frequency of the payment of royalties, and any such regulations may, if the Board think fit, include regulations requiring pay- ment in advance or otherwise securing the payment of royalties.
(7) In the case of musical works published before the commencement of this Act, the foregoing provisions shall have effect, subject to the following modifications and ad- ditions : —
(o) The conditions as to the previous making by, or with the consent or acquiescence of, the owner of the copy- right in the work, and the restrictions as to alterations in or omissions from the work, shall not apply:
(b) The rate of two and one-half per cent, shall be sub- stituted for the rate of five per cent, as the rate at which royalties are to be calculated, but no royalties shall be payable in respect of contrivances sold before the first day of July, nineteen hundred and thirteen, if contrivances reproducing the same work had been law- fully made, or placed on sale, within the parts of His Majesty's dominions to which this Act extends before the first day of July, nineteen hundred and ten :
(c) Notwithstanding any assignment made before the passing of this Act of the copyright in a musical work, any rights conferred by this Act in respect of the mak- ing, or authorising the making, of contrivances by means of which the work may be mechanically per- formed shall belong to the author or his legal personal representatives and not to the assignee, and the royal- ties aforesaid shall be payable to, and for the benefit of, the author of the work or his legal personal repre- sentatives :
(d) The saving contained in this Act of the rights and interests arising from, or in connexion with, action taken before the commencement of this Act shall not
