I thought that Johann Johannsson’s music for Arrival was one of this year’s most interesting and creative film scores — yet the use of Max Richter’s 12-year-old classical piece “On the Nature of Daylight” (which bookends the film) was startling in terms of its stylistic differences. So it came as no surprise that the Academy of Motion Picture Arts & Sciences’ music-branch executive committee disqualified the entire score from consideration in this year’s Oscar race. Having interviewed both Johannsson and Richter about their music earlier in the awards season, I thought it might be instructive to hear what each had to say about the use of this “temp music” in the final version of Arrival. I also talked, on background, to members of the committee who made this decision.