I remember having this on an old Ed Ames album. I found a record in WorldCat:
University of Alabama is supposed to hold. Perhaps you could ILL it?

                               Database:
                                        WorldCat
                                  Title:
                                        Who will answer? :
                                        (Aleluya no. 1) /
                               Author(s):
                                        Aute, Luis Eduardo. ; Davis, Sheila,; 1927- ; Ames, Ed. ; prf
                            Publication:
                                        New York :; Sunbury Music, Inc. :; Cimino Pub. Inc., sole sellin    agents,
                                  Year:
                                        1967
                            Description:
                                        1 score (4 p.) ; 31 cm.
                              Language:
                                        English
                            Standard No:
                                        Publisher: Who will answer-3; Sunbury Music, Inc.
                                        SUBJECT(S)
                              Descriptor:
                                        Popular music.
                                        Songs with piano.
                               Note(s):
                                        For voice and piano./ Caption title./ "Recorded by Ed Ames on
                                        RCA Victor Records"--cover, with photo./ First line of text: Fron
                                        the canyons of the mind we wander on.
                           Class Descrpt:
                                        LC: M1630.2.A973
                         Responsibility:
                                        lyric by Sheila Davis ; music by L.E. Aute.
                         Document Type:
                                        Score