Document:

<PAGE>

                                                                    Exhibit 10.9

                                                                  EXECUTION COPY

                                  May 21, 2002

VIA FACSIMILE (+81-(0)3-3500-0108)

Vespasianus Co., Ltd.
Hibiya Dai-Bldg., 15th Floor
1-2-2 Uchisaiwai-cho, Chiyoda-ku
Tokyo, Japan 100-0011
Attention:  Norimitsu Niwa

Ladies and Gentlemen:

         Reference is made to that certain Stock Purchase Agreement dated as of
April 11, 2002, between Valtona Holding B.V. ("Valtona") and MTS, Incorporated
("Seller"), as assigned by Valtona to Vespasianus Co., Ltd. ("Purchaser")
pursuant to that certain Assumption and Release Agreement dated as of May 10,
2002, among Seller, Valtona and Purchaser (the "Purchase Agreement").
Capitalized terms used but not defined herein are used as defined in the
Purchase Agreement.

         Seller and Purchaser hereby agree to amend the Purchase Agreement as
follows:

         1. Section 1.3(a) of the Purchase Agreement is hereby amended and
restated in its entirety as follows:

         "(a) The closing of the transactions contemplated in this Agreement
(the "Closing") shall be held at 8:00 a.m. at the offices of Cleary, Gottlieb,
Steen & Hamilton, in Tokyo, Japan on June 19, 2002 or as soon thereafter as
practicable after each of the conditions set forth in Article VI of this
Agreement shall have been fulfilled or waived in accordance herewith, or at such
other time, date or place as the parties hereto may agree in writing. The date
on which the Closing occurs is referred to as the `Closing Date'."

         2. Section 8.1(e) of the Purchase Agreement is hereby amended and
restated in its entirety as follows:

         "(e) By either Purchaser or Seller if the Closing shall not have
occurred on or prior to August 15, 2002, provided that such date shall be
postponed by no more than sixty (60) days by an involuntary bankruptcy of Seller
that is subsequently stayed or dismissed (as extended from time to time in
accordance herewith, the `Outside Date'); and provided further that the failure
of the Closing to occur on or before such date is not the result of the breach
of the covenants, agreements, representations or warranties of the party seeking
such termination."
<PAGE>
         Except as expressly set forth herein, the Purchase Agreement shall
remain in full force and effect. This letter may be signed in one or more
counterparts all of which, when taken together, shall constitute one original.

                                            Sincerely,

                                            MTS, INCORPORATED

                                            By:  /s/  Michael T. Solomon
                                                 ------------------------
                                                 Name: Michael T. Solomon
                                                 Title:  President

 ACKNOWLEDGED AND AGREED:

 VESPASIANUS CO., LTD.

 By:    /s/  Kazuya Iwanaga
      ---------------------
 Name:  Kazuya Iwanaga
 Title: President<PAGE>
                                                                   EXHIBIT 10.10

                                THIRD AMENDMENT AND WAIVER dated as of April 30,
                        2002 (this "Amendment"), to the Amended and Restated
                        Credit Agreement dated as of April 27, 2001, as amended
                        by the First Amendment dated as of October 5, 2001, and
                        the Second Amendment dated as of April 1, 2002 (the
                        "Credit Agreement"), among MTS, INCORPORATED, a
                        California corporation ("MTS"); TOWER RECORDS KABUSHIKI
                        KAISHA, a Japanese corporation ("TRKK" and, together
                        with MTS, the "Borrowers"); the LENDERS party thereto
                        (the "Lenders"); and JPMORGAN CHASE BANK (formerly known
                        as The Chase Manhattan Bank, as Administrative Agent
                        (the "Agent").

        In consideration of the mutual agreements herein contained and other
good and valuable consideration, the sufficiency and receipt of which is hereby
acknowledged, the parties hereto hereby agree as follows:

        1. Defined Terms. Capitalized terms used and not defined herein shall
have the meanings given to them in the Credit Agreement, as amended hereby.

        2. Amendments to Credit Agreement. (a) Section 6.13 of the Credit
Agreement is hereby amended by inserting at the end of the table therein the
following:

<TABLE>
                <S>                             <C>
                "02/01/02 - 04/30/02            8,300,000
                 03/01/02 - 05/31/02            8,300,000".
</TABLE>

        (b) Section 6.14 of the Credit Agreement is hereby amended by replacing
the last line of the table therein with the following:

<TABLE>
                <S>                              <C>
                "thereafter                      9.10:1.00".
</TABLE>

        3. Effect of Amendment. Except as expressly set forth herein, this
Amendment shall not by implication or otherwise limit, impair, constitute a
waiver of, or otherwise affect the rights or remedies of the Lenders, the
Collateral Agent or the Administrative Agent under the Credit Agreement, as
amended by this Amendment, or any other Loan Document, and shall not alter,
modify, amend or in any way affect any of the terms, conditions, obligations,
covenants or agreements contained in the Credit Agreement, as amended by this
Amendment, or any other Loan Document, all of which are ratified and affirmed in
all respects and shall continue in full force and effect. Nothing herein shall
be deemed to entitle the Borrower to a consent to, or a waiver, amendment,
modification or other change of, any of the terms, conditions, obligations,
covenants or agreements contained in the Credit Agreement, as amended by this

<PAGE>

Amendment, or any other Loan Document in similar or different circumstances.
This Amendment shall apply and be effective only with respect to the provisions
of the Credit Agreement set forth herein. After the date hereof, any reference
to the Credit Agreement shall mean the Credit Agreement as modified hereby. This
Amendment shall constitute a "Loan Document" for all purposes of the Credit
Agreement and the other Loan Documents.

        4. Representations and Warranties. The Borrower hereby represents and
warrants to the Agent and the Lenders as of the date hereof as follows:

        (a) After giving effect to this Amendment, no Default or Event of
Default has occurred and is continuing.

        (b) The execution, delivery and performance by the Borrower of this
Amendment have been duly authorized by all necessary corporate and other action.
The Credit Agreement as amended by this Amendment constitutes the legal, valid
and binding obligation of the Borrower, enforceable against it in accordance
with its terms, subject to applicable bankruptcy, insolvency, reorganization,
moratorium or other laws affecting creditors' rights generally and subject to
general principles of equity, regardless of whether considered in a proceeding
in equity or at law.

        (c) All representations and warranties of the Borrower contained in
Article III of the Credit Agreement (other than representations or warranties
expressly made only on and as of an earlier date, in which case such
representations and warranties are true and correct in all material respects as
of such earlier date) are true and correct in all material respects as of the
date hereof.

        5. Effectiveness. This Amendment shall become effective (the "Amendment
Effective Date") upon the Agent having received counterparts hereof duly
executed and delivered by the Borrower and the Required Lenders.

        6. Counterparts. This Amendment may be executed in any number of
counterparts and by different parties hereto on separate counterparts, each of
which when so executed and delivered shall be deemed an original, but all of
which together shall constitute a single instrument. Delivery of an executed
counterpart of a signature page of this Amendment by facsimile transmission
shall be as effective as delivery of a manually executed counterpart hereof.

        IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.

                                     MTS, INCORPORATED,

                                     by
                                        ------------------------------
                                        Name:
                                        Title:

<PAGE>

                                     TOWER RECORDS KABUSHIKI KAISHA,

                                     by
                                        ------------------------------
                                        Name:
                                        Title:

                                     JPMORGAN CHASE BANK (formerly known as
                                     THE CHASE MANHATTAN BANK), individually
                                     and as Administrative Agent,

                                     by
                                        ------------------------------
                                        Name:
                                        Title:

<PAGE>

                                                               SIGNATURE PAGE to
                                                           AMENDMENT dated as of
                                                                  April 30, 2002
                                                           to MTS, INCORPORATED/
                                                  TOWER RECORDS KABUSHIKI KAISHA
                                           AMENDED AND RESTATED CREDIT AGREEMENT

                                     To approve the Amendment:

                                     Name of Institution:

                                     -------------------------------
                                     by:

                                     -------------------------------
                                     Name:
                                     Title:

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