<PAGE>   1
                UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 10-K

                ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                      THE SECURITIES EXCHANGE ACT OF 1934


For the fiscal year ended December 1997                     Omission file
                                                            number 2-22997


                                MILLS MUSIC TRUST
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             (Exact name of registrant as specified in its charter)

               New York                          13-6183792
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    (State or other jurisdiction of           (I.R.S. Employer
     incorporation or organization)           Identification No.)

 c/o Marine Midland Bank, N.A., 140 Broadway, New York, NY        10015
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    (Address of principal executive offices)                     (Zip code)

Registrant's telephone number, including area code  (212) 658-6014
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Securities Registered Pursuant to Section 12(b) of the Act:

                                      NONE
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                                (Title of Class)

Securities Registered Pursuant to Section 12(g) of the Act:

                          UNITS OF BENEFICIAL INTEREST
--------------------------------------------------------------------------------
                                (Title of Class)

         Indicate by check-mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such report), and (2) has been subject to such
filing requirements for at least the past 90 days.

                                 YES /X/    NO / /

         As of March 10, 1998, 277,712 Trust Units were outstanding. The
aggregate market value of the Units of Mills Music Trust held by nonaffiliates
was $10,900,196

                       DOCUMENTS INCORPORATED BY REFERENCE

                                      NONE
<PAGE>   2
                                                                               2


                                     PART I

Item 1.  Business.

         Mills Music Trust (the "Trust") was created by a Declaration of Trust
dated December 3, 1964, for the purpose of acquiring from Mills Music, Inc.
("OLD Mills") the rights to receive payment of a deferred contingent purchase
price obligation payable to OLD Mills. The purchase price obligation arose as
the result of the sale by OLD Mills of its musical copyright catalogue to a
newly formed company ("New Mills").

         In payment for the aforementioned catalogue, New Mills agreed to make
quarterly payments to Old Mills (the "Contingent Portion") measured by the
royalty income generated from the catalogue and, subject to certain limitations
and conditions, from any copyrights thereafter acquired by New Mills.

         The contingent Portion for each quarterly period to and including the
last quarter of 2009 is to be an amount equal to the excess, if any, of (a) the
gross royalty income from the exploitation of the purchased copyrights during
such period (whether received by New Mills, its affiliated companies or any
other party) over (b) the sum of (i) the greater of (x) 25% of such gross
royalty income or (y) the lesser of $87,500 (as adjusted for inflation by
reflecting changes in average weekly earnings of employees in the printing,
publishing and allied industries since 1964) or 30% of such gross royalty
income; and (ii) royalties required to be paid to composers, authors and others
with respect to the existing copyrights. If the Contingent Portion as so
computed is less than $167,500, then the Contingent Portion will be computed on
the basis of the gross royalty income and related expense of New Mills, its
affiliated companies and their successors and assigns during such period not
only from the exploitation of purchased copyrights, but also from any copyrights
originated or acquired by New Mills and its affiliated companies subsequent to
December 5, 1964 (with the deductions referred to in (i) and (ii) above) except
that, when computed in this manner, the Contingent Portion cannot exceed
$167,500. In addition, for any quarterly period in which the contingent portion
as calculated above exceeds $250,000, the percentage specified in (x) above is
increased to as high as 35% based upon gross royalties for the quarter.

         Commencing with the first quarter of the year 2010, the Contingent
Portion for each quarterly period is to be an amount equal to 75% of the gross
royalty income of New Mills and/or its affiliated companies and their successors
and assigns from the exploitation of the existing copyrights for such period,
less the related royalty expense.
<PAGE>   3
                                                                               3


         The acquisition purchase agreement provides that the obligation to make
payments will terminate on the last day of the year in which the last purchased
copyright, or a renewal thereof, expires and cannot be renewed. When the
existing copyrights begin to expire, the size of each payment through the year
2009 will become increasingly dependent on the success which New Mills has in
acquiring and exploiting new copyrights.


         The composition of Old Mills Catalogue is estimated to be in the excess
of 25,000 titles of which approximately 1,500 are at present producing royalty
income. The major portion of the royalty income generated by the catalogue in
recent years, however, was produced by a relatively small number of well-known
songs, many of which have remained popular and have generated substantial
royalty income over a long period.

         The Declaration of Trust prohibits the Trust from engaging in any
business; the Trust's sole activity is the receipt of the periodic installments
of the purchase price and the distribution thereof, (after payment of expenses
of the Trust) to the owners of units of beneficial interest in the Trust.

ITEM 2. Properties.

         The administrative office of the Mills Music Trust is at 140 Broadway,
New York, New York 10015. There is no expense being charged or paid for office
space and office equipment being utilized by the Trust.

ITEM 3. Legal Proceedings

         NONE

ITEM 4. Submission of Matters to a Vote of Security Holders.

         NONE
<PAGE>   4
                                                                               4


                                     PART II

ITEM 5.  Is not applicable.

ITEM 6.  Selected Financial Data.


<TABLE>
<CAPTION>
                                                   Cash                 Cash
   Year Ended         Receipts From            Distributions        Distribution
   December 31,     Mills Music, Inc.         To Unit Holders          Per Unit*
   ------------     -----------------         ---------------          ---------
<S>                 <C>                       <C>                   <C>
      1997            $1,137,919                 $1,101,434              $3.97
      1996            $1,175,543                 $1,148,285              $4.13
      1995            $1,268,400                 $1,227,155              $4.42
      1994            $1,308,116                 $1,269,515              $4.57
      1993            $1,065,519                 $1,042,424              $3.75
</TABLE>

* Based on the 277,712 Trust Units outstanding

ITEM 7.  Management's Discussion and Analysis of the Trust's
         Receipts.

         The Trust's receipts are derived principally from copyrights
established prior to 1964 and such receipts fluctuate based upon public interest
in the "nostalgia" appeal of older copyrighted songs.

ITEM 8.  Financial Statements.

         The financial statements begin on page 5 of this report.
<PAGE>   5
                       [KPMG Peat Marwick LLP Letterhead]

                          Independent Auditors' Report


The Trustees and Unit Owners
Mills Music Trust:

We have audited the accompanying statements of cash receipts and disbursements
of Mills Music Trust for each of the years in the three-year period ended
December 31, 1997. These financial statements are the responsibility of the
Trust's management. Our responsibility is to express an opinion on these
financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

As described in Note 1, these financial statements were prepared on the basis of
cash receipts and disbursements, which is a comprehensive basis of accounting
other than generally accepted accounting principles.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the cash receipts and disbursements of Mills Music Trust
for each of the years in the three-year period ended December 31, 1997, on the
basis of accounting described in Note 1.


                                          /s/ KPMG PEAT MARWICK LLP

                                          KPMG PEAT MARWICK LLP

March 19, 1998
<PAGE>   6

                                                                               6


                                MILLS MUSIC TRUST
                  STATEMENTS OF CASH RECEIPTS AND DISBURSEMENTS
                             YEARS ENDED DECEMBER 31


<TABLE>
<CAPTION>
                                            1997               1996               1995
                                         -----------        -----------        -----------
<S>                                      <C>                <C>                <C>
Receipts from Mills Music, Inc.          $ 1,137,919        $ 1,175,543        $ 1,268,400
                                         -----------        -----------        -----------
   Total Receipts                        $ 1,137,919        $ 1,175,543        $ 1,268,400
Undistributed Cash at Beginning                   21                 30                774
   of Year

Disbursements -
   Administrative Expenses                   (36,498)           (27,267)           (41,989)
                                         -----------        -----------        -----------

Balance Available for Distribution         1,101,442          1,148,306          1,227,185

Cash Distributions to Unit Holders        (1,101,434)        (1,148,285)         1,227,155
                                         -----------        -----------        -----------
Undistributed Cash at
   End of the year                       $         8        $        21        $        30
                                         -----------        -----------        -----------

Cash Distributions Per Unit
 (based on the 277,712
  Trust Units Outstanding)               $      3.97        $      4.13        $      4.42
                                         ===========        ===========        ===========
</TABLE>


         The Trust does not prepare a balance sheet or a statement of cash
flows.

         See accompanying Notes to Statements of Cash Receipts and
Disbursements.
<PAGE>   7



                                MILLS MUSIC TRUST
             NOTES TO STATEMENTS OF CASH RECEIPTS AND DISBURSEMENTS
                       THREE YEARS ENDED DECEMBER 31, 1997

Note 1. Accounting Policies and General Information.

         Mills Music Trust (the "Trust") was created in 1964 for the purpose of
acquiring the rights to receive payment of a deferred contingent purchase price
contract obligation payable by Mills Music, Inc. ("Mills"). The contingent
payments are determined quarterly and are based on a formula which takes into
account gross royalty income paid to composers, authors and others, and less
amounts deducted by Mills in accordance with contract terms.

         Payments from Mills to the Trust are made in March, June, September and
December and include net royalty income of the preceding calendar quarter. The
payments received are accounted for on a cash basis, as are expenses. The
Declaration of Trust requires the distribution of all funds received by the
Trust to the unit holders after payment of expenses.

         The statements of cash receipts and disbursements reflect only cash
transactions and do not present transactions that would be included in financial
statements presented on the accrual basis of accounting, as contemplated by
generally accepted accounting principles.

Note 2.  Federal Income Taxes

         No provision for income taxes has been made since the liability
therefore is that of the unit holders and not the Trust.

Note 3.  Related Party Transactions

         The Declaration of Trust provides that each trustee shall receive
annual compensation of $2,500 per year for services as trustee, provided that
such aggregate compensation to the trustees as a group may not exceed 3% of the
monies received by the Trust in any year, and reimbursement for expenses
reasonably incurred in the performance of their duties. The Declaration of Trust
further provides for reimbursement to the corporate trustee for its clerical and
administrative services to the Trust. Accordingly, Marine Midland Bank, the
corporate trustee, also receives reimbursement for such services (including
services performed as Registrar and Transfer Agent of the Certificates
representing Units). The Declaration of Trust also provides, that if in the
future any trustee performs unusual or extraordinary services, reasonable
compensation for such services shall be paid, subject to certain limitations and
to prior confirmation by a majority in interest of Trust Certificate holders.
<PAGE>   8
                                                                               8


                                MILLS MUSIC TRUST
        NOTE TO STATEMENTS OF CASH RECEIPTS AND DISBURSEMENTS (CONTINUED)
                       THREE YEARS ENDED DECEMBER 31, 1997

Note 3.  Related Party Transactions (continued).

         Pursuant to these provisions, disbursements were made as follows for
the years ended December 31:

<TABLE>
<CAPTION>
Trustees                                1997         1996          1995
--------                               ------       ------       -------
<S>                                    <C>          <C>          <C>
  Marine Midland Bank                  $2,500       $2,500       $ 2,500
  Bernard Fischman                      2,500        2,500         2,500


Marine Midland Bank as registrar
 and transfer agent                     5,932        - 0 -        11,818
</TABLE>

Note 4.  Royalty Examination

         The Trust's claim against Belwin Mills Publishing Corporation, the
former administrators of the Old Mills Catalogue, in connection with a 1987
royalty examination is pending final resolution by the Trust. It cannot be
determined at this time, what, if any, amount may ultimately be received by the
Trust. No examination of royalty information has been performed subsequent to
1987.


ITEM 9.  Is not applicable.
<PAGE>   9
                                                                               9

                                    PART III

ITEM 10.  Directors of the Registrant.

         Bernard D. Fischman is the individual Trustee and Marine Midland Bank
is the Corporate Trustee of the Registrant. The Trustees serve until their
removal, resignation, incapacity, or in the case of individual Trustees, their
death.

         Mr. Fischman, age 81, has served as a trustee since December,
1964.  He is an attorney and a member of the firm of LeBoeuf, Lamb,
Green & McRae.

         Marine Midland Bank, N.A. has been the corporate trustee since
February, 1965 and is a national banking association organized under
the laws of the Unites States.

ITEM 11. Executive Compensation. See Item 13.

ITEM 12. Security Ownership of Certain Beneficial Owners and Management.

(a)      Security Ownership of Certain Beneficial Owners.

         To the best knowledge of the Trustees, the only persons who
beneficially own more than 5% of the Trust Units are as follows:

<TABLE>
<CAPTION>
                                                                   Percent
Name and Address of                   Number of                    of Units
Beneficial Owner                     Units Owned                  Outstanding
----------------                     -----------                  -----------
<S>                                  <C>                          <C>
MPL Communications, Ltd.
39 West 54th Street
New York, New York 10019             79,609 Units                    28.67%

Cede & Co.
Fast Cod Balance
P.O. Box 20
Bowling Green Station
New York, New York 10004            136,470 Units                    49.14%
</TABLE>
<PAGE>   10
                                                                              10

(b)      Security Ownership of Management.

         The present Trustees have beneficial ownership in the Trust as follows:

<TABLE>
<CAPTION>
                           Nature of            Percentage
                           Beneficial           of Units
   Trustee                 Ownership            Outstanding
   -------                 ---------            -----------
<S>                        <C>                     <C>
Bernard D. Fischman        351 Units               .13%
                           (Sole Owner)

Marine Midland Bank        None                    None
</TABLE>

(c)      Changes in Control.

         The Trustees know of no contractual arrangements which may result in a
change in control of the Trust at a subsequent date.

ITEM 13.  Certain Relationships and Related Transactions.

         Remunerations of Directors and Officers.

         The Declaration of Trust provides that each trustee shall receive
annual compensation of $2,500 per year for his services as trustee, provided
that such aggregate compensation to the trustees as a group may not exceed 3% of
the monies received by the Trust in any year, and reimbursement for expenses
reasonably incurred in the performance of his duties. The Declaration of Trust
further provides for reimbursement to the corporate trustee for its clerical and
administrative services to the Trust. Accordingly, Marine Midland Bank also
receives reimbursement for such services (including services performed as
Registrar and Transfer Agent of the Certificates representing Units). The
Declaration of Trust further provides that if in the future any trustee performs
unusual or extraordinary services, reasonable compensation for such services
shall be paid, subject to certain limitations and to prior confirmation by a
majority in interest of Trust Certificate holders. During 1997, pursuant to
these provisions, Bernard D. Fischman received $2,500 and Marine Midland Bank
$2,500.
<PAGE>   11
                                                                              11

                                     PART IV

ITEM 14.  Exhibits, Financial Statements Schedules and Reports on Form
          8-K

<TABLE>
<CAPTION>
(a)  1.   Financial Statements                                    Page
                                                                  ----
<S>                                                               <C>
Independent Auditors' Report                                        5

Statements of cash receipts and disbursements -
  years ended December 31, 1996, 1995 and 1994                      6

Notes to statements of cash receipts and disbursements.             7-8

     2.   Financial Statement Schedules                           None

     3.   Exhibits                                                None

(b) Reports on Form 8-K                                           None
</TABLE>
<PAGE>   12
                                                                              12

                                   SIGNATURES


         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.



                                                  MILLS MUSIC TRUST
                                           -----------------------------------
                                                      (Registrant)


                                           By:    BERNARD D. FISCHMAN
                                              --------------------------------
                                              Bernard D. Fischman, Trustee


                                           By:    MARINE MIDLAND BANK
                                              --------------------------------
                                                  Marine Midland Bank
                                                   Corporate Trustee

Dated as of March 19, 1998

         Pursuant to the requirements of the Securities Exchange Act of 1934,
this report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the dates indicated.