A Lyre is an instrument obtained during Olaf's task in The Fremennik Trials. It can be enchanted by Fossegrimen, by offering a raw shark or a raw bass to its altar. An enchanted lyre can be used as a one-click teleport to Relleka.
Creating the lyre
To create a lyre, you must first cut some wood from the Swaying tree, east of Relleka. Use a knife on the tree branch to create a lyre. However, you need strings, so obtain some golden fleece from Lalli (1,000gp) and spin it on a spinning wheel (nearest spinning wheel is in Seers' village).
The Fremmenik Trials
During The Fremennik trials, you have to go to the stage in the main hall and play the lyre. Wearing a skillcape or being in a guild, champions', heroes' or legends' guild will make the song lyrics different.
After you've played on the stage, you get to keep the lyre.