"J" 是一张音乐频道的头像，采用金色琴键风格。一个由黑金琴键拼成的大写 J 放在深酒红底上的细金圆环里，一个有力的形状，缩得很小也读得出。可以换成你自己的首字母和乐器。

Create a finished 1:1 square profile-picture emblem for a music channel, optimized to remain instantly legible at 98 × 98 px and when cropped to a circle. Render only the exact character "J"; no other text, letters, numbers, logos, or fine print. Center one oversized, unmistakable capital J, built from a small number of broad, clearly separated piano-key shapes: warm metallic gold keys form the main continuous J silhouette, with deep black key gaps and a few black-key accents integrated into the shape. Keep the J readable as a letter first and as piano keys second; use a bold, simple silhouette with a clearly curved lower hook. Place it inside a flat deep-burgundy circular medallion, centered on a matching near-black burgundy square field. Give the gold a restrained satin-metal finish with crisp highlights, not glitter or complex reflections. Strong separation between gold, black, and burgundy; clean hard edges, subtle dimensional bevel only, controlled soft rim light, no glow obscuring the silhouette. Keep the full medallion and all key elements well inside the central circular safe area with generous margin. No extra instruments, notes, patterns, gradients, or decorative details. High-contrast, polished graphic emblem, designed for tiny avatar display.