Sorry I don't know if I can post this type of question here, could someone tell me how I can summon my pet ??

When you equip a Takt/Baton, there is a special slot on the weapon palette that is for placing an egg/pet on it. It should be the leftmost slot, closest to the weapon icon. You can equip the same takt/baton multiple times with different pets.

Only a Summoner can do this, unless you get a multi-class takt/baton.

For starters you have to use an egg to get the pet to have the harmonizer equiped then place the pet into a PA slot then you can feel out the rest of the PAs I hope this helps you out

Just a side note but you may want to ask a gm to move the post to general