(defun decode-workout-json (json)
  (jdecode json
           (make playlist
                 ("workout_content_list"
                  ("playlist"
                   ("sounds"
                    (set-to-list sounds
                                 (make sound
                                       (set play-length "play_length")
                                       (set start-time "start_time")
                                       (set url "url"))))
                   ("interval_timer"
                    (set title "title")
                    ("interval_sets"
                     (set-to-list interval-sets
                                  (make interval-set
                                        (set repetitions "interval_repetitions")
                                        ("intervals"
                                         (set-to-list intervals
                                                      (make interval
                                                            (set title "title")
                                                            (set details "details")
                                                            (set seconds "seconds")
                                                            ("exercise_images"
                                                             (set-to-list exercise-images "url"))
                                                            ("inline_videos"
                                                             (set-to-list inline-videos "base_filename"))))))))))))))