diff --git a/sonic-radiance.love/game/utils/choregraphy/arguments.lua b/sonic-radiance.love/game/utils/choregraphy/arguments.lua
new file mode 100644
index 0000000..0adabd0
--- /dev/null
+++ b/sonic-radiance.love/game/utils/choregraphy/arguments.lua
@@ -0,0 +1,12 @@
+return {
+  ["wait"] = {"duration"},
+  ["addGFX"] = {'sprite', "origin", "x", "y", "affectedByDirection", 'blockProcess'},
+  ["playSFX"] = {"sfx"},
+  ["sendDamage"] = {"power", "accuracy", "isSpecial", "isAerial"},
+  ["goTo"] = {"origin", "x", "y", "duration", "blockProcess"},
+  ["setAnimation"] = {"animation", "blockProcess"},
+  ["jump"] = {"power", "blockProcess"},
+  ["jumpTo"] = {"origin", "x", "y", "duration", "blockProcess"},
+  ["jumpBack"] = {"duration", "blockProcess"},
+  --[name] = {args},
+}
diff --git a/sonic-radiance.love/game/utils/choregraphy/init.lua b/sonic-radiance.love/game/utils/choregraphy/init.lua
new file mode 100644
index 0000000..5aa85a0
--- /dev/null
+++ b/sonic-radiance.love/game/utils/choregraphy/init.lua
@@ -0,0 +1,45 @@
+ChoregraphyUtils = {}
+
+function ChoregraphyUtils.getStepStructure(stepName)
+  local stepTypeList = require "game.utils.choregraphy.arguments"
+  return stepTypeList[stepName]
+end
+
+function ChoregraphyUtils.stepExists(stepName)
+  return (ChoregraphyUtils.getStepStructure(stepName) ~= nil)
+end
+
+function ChoregraphyUtils.validate(stepBaseDatas)
+  local structure = ChoregraphyUtils.getStepStructure(stepBaseDatas[1])
+  if (structure == nil) then
+    return false
+  else
+    return ((#structure + 2) == #stepBaseDatas)
+  end
+end
+
+function ChoregraphyUtils.getStepDatas(stepBaseDatas)
+
+  local stepData = {}
+  stepData.name = stepBaseDatas[1]
+
+  if (ChoregraphyUtils.validate(stepBaseDatas)) then
+    stepData.condition = stepBaseDatas[2]
+
+    local structure = ChoregraphyUtils.getStepStructure(stepData.name)
+
+    stepData.arguments = {}
+
+    for i, argumentName in ipairs(structure) do
+      local argumentContent = stepBaseDatas[i + 2]
+      stepData.arguments[argumentName] = argumentContent
+    end
+
+    return stepData
+  else
+    error("L'étape " .. stepData.name .. " à un nbr d'argument incorrect")
+  end
+
+end
+
+return ChoregraphyUtils