George Martin arrangement heard on Dark Side of The Moon

Indeed, The track Ticket To Ride from George Martin's instrumental version of the Beatles' Help! album can be heard very faintly in the background at the end of Dark Side Of The Moon's last track " Eclipse" (during the closing heartbeats). Before digital recording, tapes were sometimes wiped and re-used. It is possible that the tape used to record the heart-beat sound effect was not properly wiped and formerly had this track on it, or it was a deliberate inclusion by the band.
Source: Wikipedia
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