Memorandum of agreement, made and entered into this 30th day of April, 1902, by and between Clayton F. Summy Company, of Chicago, in the State of Illinois, party of the first part, hereinafter called the publisher, and the Æolian Company, a corporation organized under the laws of the State of Connecticut, and having a place of business in the city of New York in the State of New York, party of the second part, hereinafter called the Æolian Company, witnesseth: That whereas, the publisher is the proprietor of certain copyrights for musical compositions and the owner of rights in copyrights for other musical compositions; and Whereas, the Æolian Company is engaged in the business of manufacturing and selling automatic musical instruments controlled by perforated music sheets, and in manufacturing and selling machines for playing keyboard musical instruments, which machines are controlled by perforated music sheets, and in manufacturing and selling perforated music sheets for such automatic musical instruments and machines; and Whereas, the Æolian Company is desirous of acquiring the exclusive right for such perforated music sheets in and to all the copyrighted musical compositions of which the publisher is the proprietor, or as to which he is the owner of any rights, and of all those other musical compositions which may hereafter be protected by copyright, and the copyrights for which or rights in which may be acquired by him; Now, therefore, the publisher, for and in consideration of the premises, and of the sum of $1, lawful money of the United States, to him paid by the Æolian Company, receipt of which is hereby acknowledged, and for and in consideration of the true and faithful performance by the Æolian Company of its covenants hereinafter made, does hereby sell, assign, transfer, and set over unto the Æolian Company, the exclusive right for all perforated music sheets of the kinds aforesaid in and to all the copyrighted musical compositions of which the publisher is the proprietor, or in the case in which he is the owner of any less rights, to the extent of said rights, and does hereby covenant and agree with the Æolian Company to give and secure to it, the exclusive right in like manner for all perforated music sheets of the kinds aforesaid in and to all those other musical compositions which may hereafter be protected by copyright, and the copyrights or rights in which may be acquired by the publisher. And the publisher for the consideration aforesaid hereby covenants and agrees, so far as it may be reasonably in his power, to protect the Æolian Company against any claim of any third person in respect to any and all copyrighted musical compositions which may be involved in this agreement, and the copyright of which may be owned by the publisher.