{
  "id": "walk_fwd_lower",
  "track": "lower",
  "duration": 0.8,
  "loop": true,
  "keyframes": [
    { "t": 0.0,
      "leg_l":  {"scl": [-1,  0]},  "leg_r":  {"scl": [ 1,  0]}
    },
    { "t": 0.2,
      "leg_l":  {"scl": [-1, -1]},  "leg_r":  {"scl": [ 1,  1]}
    },
    { "t": 0.4,
      "leg_l":  {"scl": [-1,  0]},  "leg_r":  {"scl": [ 1,  0]}
    },
    { "t": 0.6,
      "leg_l":  {"scl": [-1,  1]},  "leg_r":  {"scl": [ 1, -1]}
    },
    { "t": 0.8,
      "leg_l":  {"scl": [-1,  0]},  "leg_r":  {"scl": [ 1,  0]}
    }
  ]
}