Big Lyre
This lyre is located north of the Goddess of Love fast travel point.
To play the big lyre, you’ll need to first find the 4 small lyres scattered around the Valley of Eternal Spring. They will give you the order of the strings to play on the big lyre. At the big lyre, shoot the strings with arrows in the correct order to receive Coins of Charon.
Small Lyre
This small lyre can be found on an island slightly northwest of Eros’s Haven fast travel point.
To access the lyre, you’ll need to remove the red barriers on the building by using Apollo’s Arrow to shoot the unlit braziers in front of the 3 statues on the outskirts of the building. Once the braziers have been lit, activate the pedestal directly above the now lit brazier. The order of the strings is 42142.
This small lyre can be found south of the Goddess of Love fast travel point.
To release the barrier on the building, break the rock column directly in front of the entrance to reveal a statue. This will also break the barrier. The order of the strings is 32314.
This lyre is located east of Kalliope’s Distress vault.
In order to remove the barrier, you’ll need to light the 2 braziers on either side of the entrance using Apollo’s Arrow. Once the barrier has been broken, head inside to play the lyre. The order of the strings is 2413.
This lyre can be found northeast of Gaia’s Soul fast travel point.
To remove the red barrier from the entrance to the golden building. Place a metal cube onto the platform to the south. This will cause the gates to raise up and down. Either swim under the gates or climb over the golden wall in front of you to reach the other side. Activate the pedestal on a small platform in the middle of the water. Turn west towards the image of the harp on the wall and dive underwater. Activate the pedestal just before the gate. While underwater, turn around and head east to find another underwater pedestal. Activate it to stop the gates from moving up and down. This will also release the barrier from the entrance, so head on over and enter the building to play the lyre. The order of the strings is 132421.