Bard Elite Skills are a bit different to obtain compared to the other classes. These skills are obtainable through a specific process involving the instructor, Miquella.
Level 15 Purple Instruments are also available for purchase with gold.
Instrument Upgrade Option:
There is an option to upgrade your purple Instrument to match your level.
Note: Upgrading requires first obtaining an Elite Skill.
The +1 Weapon option becomes available after acquiring the level 25 Elite Skill and then every five levels thereafter.
Skill Training Certificates Trade-In: Players have the option to trade Skill Training Certificates for 3-day Music Instruments. These instruments are acquired from Dimitar Windwhisperer in the Howling Mountains.