Longest single album duration

.json

{
  "took" : 59,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "failed" : 0
  },
  "hits" : {
    "total" : 8486,
    "max_score" : 0.0,
    "hits" : [ ]
  },
  "aggregations" : {
    "per_artist" : {
      "doc_count_error_upper_bound" : 0,
      "sum_other_doc_count" : 8319,
      "buckets" : [ {
        "key" : "Nobuo Uematsu",
        "doc_count" : 166,
        "per_album" : {
          "doc_count_error_upper_bound" : 0,
          "sum_other_doc_count" : 92,
          "buckets" : [ {
            "key" : "Final Fantasy VIII - Original Soundtrack",
            "doc_count" : 74,
            "album_duration" : {
              "value" : 14932.0
            }
          } ]
        }
      } ]
    }
  }
}