Prompt: Craft an oil painting concept featuring an elderly Strix bard in the Pathfinder RPG universe. Illustrate the character's hauntingly beautiful music as they play a distinctive wearable drum kit. Highlight the monstrous black-feathered wings enveloping their leanly muscled, onyx-skinned humanoid form. Ensure that the character's face maintains a human-like appearance, avoiding bird-like features. Emphasize the details of the wearable drum kit, considering the Strix's advanced age and its impact on both their appearance and musical style. Convey the character's background, personality traits, and the mystical nature of their wings through the visual narrative of the oil painting.