Sorry I couldnt reply to you faster, I dont have access to my xbox for the nxt few days. Good thing u also made this thread. Anyways, the Soul Released Achievement is one of 2 achievements you get from doing a long trading quest. Here's the whole quest written down for you in detail:
1. You must talk to the Former Developer in Ritardando, either as Beat during
Chapter 5 or later as Allegretto once you can teleport back.
2. Talk to the Former Servant in Baroque City (near Lonesome Loco) who
will tell you more about Chord.
3. After defeating Rondo in Aria Temple, you get a Heart Pendant.
4. Once you can teleport around during Chapter 6 and 7, you can return to
Fort Fermata and enter a locked door to trade the Heart Pendant to Chord for
the Pot sitting near him.
YOU SHOULD NOW GET THE ACHIEVEMENT
(CONTINUE THE TRADING QUEST FOR ANOTHER ACHIEVEMENT)
5. Trade the Pot to a woman in Tenuto Village for some Goat Stew.
6. Trade the Goat Stew to the goatherd in Chorus Plains for a Coupon.
7. Trade the Coupon to the merchant in Hanon Hills for some Honey.
8. Take the Honey to the Magic Researcher in Baroque Castle.
9. Give photos of 20 different monsters to the Agogo Boy in Agogo Village
(since you can only carry 12 photos at a time, it will require at least 2
trips to bring enough) for Agogo Droppings.
10. The Magic Researcher will take the Agogo Droppings and give you the Odd
Candy after you spend the night at the Baroque Hotel.
11. Trade the Odd Candy to the merchant in Hanon Hills for a Glass Ball.
12. Take the Glass Ball to the priest in Baroque. He gives it back and tells
you to take it to the top of Aria Temple.
13. Take the Glass Ball to the top of Aria Temple, and examine the very back
of the top room where you fought Rondo. It will change into the Orb.
14. When you reach the top of Xylophone Tower in Chapter 7, place the Orb
in the slot at the back of the top room in Xylophone Tower. This leads
to a chest containing the Lion's Chime, YOU WILL ALSO UNLOCK "XYLOPHONE TREASURE" ACHIEVEMENT!
Sometimes life gives you glimpses of Providence...
such as sniping that loud-mouthed kid from across the map.