Exhibit 5.7

[Letterhead of Van Cott, Bagley, Cornwall & McCarthy, P.C.]

January 25, 2012

VIA FEDERAL EXPRESS

Warner Music Group Corp.

75 Rockefeller Plaza

New York, NY 10019

Ladies and Gentlemen:

We have acted as special Utah counsel to the guarantors listed on Schedule I hereto (individually, a “Represented Guarantor” and collectively, the “Represented Guarantors”) in connection with the Registration Statement on Form S-4 (the “Registration Statement”) filed by Warner Music Group Corp. and WMG Acquisition Corp. (the “Company”), the Represented Guarantors, and additional guarantors (the “Additional Guarantors”) with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended, relating to the issuance by the Company of U.S.$765,000,000 aggregate principal amount of 11.50% Senior Notes due 2018 (the “Exchange Securities”) and the issuance by the Represented Guarantors and the Additional Guarantors of guarantees (the “Guarantees”) with respect to the Exchange Securities. The Exchange Securities and the Guarantees will be issued under an indenture, dated as of July 20, 2011, among the Company, as successor by merger to WM Finance Corp. and Wells Fargo Bank, National Association, as trustee (the “Trustee”), as amended by the Supplemental Indenture, dated as of July 20, 2011 (together with such indenture, the “Indenture”), among the Company, the Trustee, the Represented Guarantors and the other entities named in the signature pages thereto. The Exchange Securities will be offered by the Company in exchange for a like principal amount of unregistered 11.50% Senior Notes due 2018.

We have examined the Registration Statement and the Indenture, which has been filed with the Commission as an exhibit to the Registration Statement. We also have examined the originals, or duplicates or certified or conformed copies, of such corporate records, agreements, documents and other instruments pertaining to the Represented Guarantors and have made such other investigations as we have deemed relevant and necessary in connection with the opinions hereinafter set forth. As to questions of fact material to this opinion, we have relied upon certificates or comparable documents of public officials and of officers and representatives of the Company and of the Represented Guarantors.

In rendering the opinions set forth below, we have assumed the genuineness of all signatures, the legal capacity of natural persons, the authenticity of all documents submitted to us as originals, the conformity to original documents of all documents submitted to us as duplicates or certified or conformed copies and the authenticity of the originals of such latter documents. We also have assumed that the Indenture is the valid and legally binding obligation of the Trustee.

Warner Music Group Corp.

January 25, 2012

Page 2

Based upon the foregoing, and subject to the qualifications, assumptions and limitations stated herein, we are of the opinion that:

1. When (a) the Exchange Securities have been duly executed, authenticated, issued and delivered in accordance with the provisions of the Indenture upon the exchange and (b) the Guarantees have been duly issued, the Guarantees will constitute valid and legally binding obligations of the Represented Guarantors enforceable against the Represented Guarantors in accordance with their terms.

2. Each of the Represented Guarantors is validly existing and in good standing under the laws of the State of Utah.

3. The Represented Guarantors have duly authorized, executed and delivered the Indenture.

4. The execution, delivery and performance by the Represented Guarantors of the Indenture and the Guarantees do not and will not violate the law of the State of Utah.

Our opinion set forth above is subject to (i) the effects of bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and other similar laws relating to or affecting creditors’ rights generally, (ii) generally equitable principles (whether considered in a proceeding in equity or at law) and (iii) an implied covenant of good faith and fair dealing.

We do not express any opinion herein concerning any law other than the law of the State of Utah and the federal law of the United States (including the statutory provisions and reported judicial decisions interpreting the foregoing). Our opinion set forth above is limited to the Represented Guarantors listed on Schedule I and their Guarantees and does not include the obligations of any Additional Guarantors.

We hereby consent to the filing of this opinion letter as Exhibit 5 to the Registration Statement and to the use of our name under the caption “Legal Matters” in the Prospectus included in the Registration Statement. Debevoise & Plimpton LLP is hereby authorized to rely on this letter for the purposes of the opinion it is giving in connection with the Registration Statement.

Very truly yours,

/s/ Van Cott, Bagley, Cornwall & McCarthy, P.C.

VAN COTT, BAGLEY, CORNWALL & McCARTHY

Warner Music Group Corp.

January 25, 2012

Page 3

SCHEDULE I

Non-Stop Music Library, L.C.

Non-Stop Cataclysmic Music, LLC

Non-Stop International Publishing, LLC

Non-Stop Music Publishing, LLC

Non-Stop Outrageous Publishing, LLC

Non-Stop Productions, LLC