¶1Following a seven-day trial, a jury convicted each of the defendants, Andrew and Ruth Jerome, of rape of a child by unnatural sexual intercourse, G. L. c. 265, § 23.
¶2The jury could have found the following facts. Susan,
¶3The appeal has to do, in part, with a tape recording of conversations between Susan and Dr. Clark, a therapist whom she visited early in 1982 when she was eight years old. The record lacks detailed information about the manner in which Dr. Clark recorded portions of his conversations with Susan. We do know, however, that at a sidebar conference, with the jury not present, counsel for the defendants, in the presence of the prosecutor, said, “We have reason to believe, and I suggest that [the prosecutor] concurs, that there were four therapy visits constituting approximately five hours. We have one hour of tape .... There were three interviews on that tape that seemed to start and stop without being identified as to the date, the place.”
¶4We also know, from Dr. Clark’s testimony, that he met with Susan four times, on January 18, January 20, February 17, and March 3. And we know Dr. Clark’s procedure for the recording: “I have a tape recorder that I use in situations where I think there might be legal implications. I at some *61point began taping some of the material that I was getting. ... I began by taping the session with [Susan’s father] and [Susan] at some point, although I don’t believe it was in the very beginning. It may have been. Then I taped most of my sessions with [Susan]. Most of the time I spent with her alone I believe I also taped.”
¶5Dr. Clark did not testify to the duration of any session, or to the total time of all sessions, or to the content of any sessions.
¶6We have, then, four visits which were, in total, approximately five hours in duration, while the tape heard by the jury (and played back by this court) lasts exactly eighty-one minutes. The tape does not reveal which session is being recorded, except for one reference to February 17. Among other subjects, the tape captures Susan’s disclosures of the alleged sexual abuse.
¶7The trial judge admitted the tape as evidence of fresh complaint,
¶8A sexual assault victim’s prompt out-of-court complaint about the attack is admissible to corroborate his or her testimony, but may not be used to establish the truth of the complaint itself. Commonwealth v. Lavalley, 410 Mass. 641, 643 (1991), and cases cited. Commonwealth v. Licata, 412 Mass. 654, 657 (1992). In proper circumstances, a tape recording or videotape of the victim’s complaint is admissible since it may provide a reliable evidentiary resource. See Commonwealth v. Lavalley, 410 Mass. at 645. See also Commonwealth v. Gordon, 389 Mass. 351, 355-356 (1983) (recorded testimony admissible subject to certain limitations).
¶9The admissibility of a taped conversation, if the conversation is relevant and not otherwise excludable, turns on whether the tape provides “a fair representation of that which [it] purport [s] to depict. . . .” Commonwealth v. Lavalley, 410 Mass. at 645. One factor to be considered is whether the tape is so incomplete as to be untrustworthy, creating the risk that the jury will be misled. Commonwealth v. Allen, 22 Mass. App. Ct. at 421-422. The recording must be a fair representation of the entire conversation between the parties, and it must not be inadmissible under an exclusionary rule. Commonwealth v. Mahoney, 400 Mass. 524, 527 (1987). Commonwealth v. Lavalley, supra at 645.
¶10We need not decide whether this incomplete tape was admitted erroneously, for we conclude that the admission worked no significant prejudice to the defendants. The test is whether “the error possibly weakened [the defendants’] case in some significant way so as to require a new trial.” Com*63monwealth v. Daggett, 416 Mass. 347, 352 n.5 (1993), quoting from Commonwealth v. Schulze, 389 Mass. 735, 741 (1983). The information disclosed on the tape did not fill in any gaps in the Commonwealth’s proof of the essential elements of the crime, see Commonwealth v. Tingley, 32 Mass. App. Ct. 706, 710 (1992), and the fact that it did not replicate exactly Susan’s testimony is not reason to bar its admission. See Commonwealth v. Scanlon, 412 Mass. 664, 670 (1992). Indeed, the recorded conversation contained less inflammatory detail than that to which Susan testified on direct examination.
¶11Of particular importance is the fact that Dr. Clark was in court, testified, and was cross-examined by the defendants. They chose not to examine him with regard to the content of the unrecorded conversation, but that was a strategic decision of counsel, not one imposed upon them. The tape, in short, was merely a substitute for Dr. Clark’s direct testimony on the same subject, and the judge so informed the jury (“Generally speaking, the doctor would be on the stand and he would repeat orally from the stand what [Susan] told him. But rather than have him rely on his memory, we are utilizing the tape instead”). We conclude that any possible error with regard to the admission of the tape worked no material harm to the defendants’ case.
¶12Andrew Jerome argues that the complainant’s testimony (admitted without objection by the defendants) on direct examination regarding the various kinds of therapy she underwent after the alleged abuse, her emotions and personal *64problems, including three attempts at suicide made after the alleged abuse, was irrelevant
¶13We have reviewed the remaining arguments of the defendants; they have no merit. Any excessive zeal in the prosecutor’s closing argument was effectively cured by the judge’s charge to the jury.
¶14Judgments affirmed.
¶15 Andrew Jerome was acquitted of a charge of rape of a child by sexual intercourse, G. L. c. 265, § 23.
¶16 We use a pseudonym.
¶17 Susan first reported the abuse to her father, but disclosed no details. It was this report that precipitated the appointments with Dr. Clark.
¶18 There is no issue on appeal as to the freshness of the complainant’s statement to Dr. Clark, which the trial judge appropriately found was reasonably prompt.
¶19 A small portion of the tape, which contained Dr. Clark’s conversation with the complainant’s younger sister, was not played to the jury. The transcript was not admitted in evidence.
¶20 The defendants declined the judge’s invitation to identify any portions of the tape recording that ought to be redacted, foreclosing arguments in this court that there were objectionable portions of the recording. See Commonwealth v. Hollyer, 8 Mass. App. Ct. 428, 432 (1979).
¶21 Andrew Jerome does not claim as error the complainant’s testimony regarding her counseling in 1988 at Family Growth, an organization that prepares alleged victims to testify at trial; this testimony was ostensibly offered to explain why the authorities were not notified until 1989.