Allocation for Music Producers Act or the AMP Act This bill amends federal copyright law to require a collective designated by the Copyright Royalty Judges to implement a policy providing for the acceptance of instructions (referred to as a "letter of direction") from a person who owns the exclusive right to publicly perform a sound recording by means of a digital audio transmission, or from a recording artist of a such a sound recording, to distribute a portion of royalty payments to a producer, mixer, or sound engineer who was part of the creative process behind the sound recording. The collective must adopt special procedures for a producer, mixer, or sound engineer to receive a portion of royalties for recordings fixed before November 1, 1995, by certifying that a reasonable effort has been made to obtain a letter of direction from an artist who owns the right to receipts payable with respect to the sound recording.