Goal: Create a square cinematic music poster for {argument name="composer name" default="BEETHOVEN"}, dark and moody, about a classical sonata that makes the outside world disappear.

Canvas: 1:1 square poster, high contrast, black background with deep forest-green shadows and aged ivory typography. Use a distressed printed texture, subtle grain, and a dramatic chiaroscuro look.

Layout: Left side contains all typography; right side is dominated by a vertical hybrid image of a violin/cello silhouette merged with piano keys. The center background shows a misty evergreen forest fading into darkness, as if music and nature are blending together. Keep the composition asymmetrical: roughly 60% dark negative space on the left, forest in the middle, instrument and piano keys on the right.

Text content: Use exactly 4 text elements: 1) top-left small title “{argument name="composer name" default="BEETHOVEN"}”; 2) directly below it, smaller subtitle “{argument name="sonata label" default="SONATA N.º 10, OP. 96"}”; 3) a short thin red horizontal dash beneath the subtitle; 4) large main headline in Spanish, stacked over two lines: “{argument name="headline text" default="LA MÚSICA QUE BORRA\nEL MUNDO EXTERIOR"}”. Add a small red page marker “{argument name="page marker" default="1/4"}” in the bottom-left corner.

Subject details: The right-side instrument should show four thin vertical strings, a curved violin or cello body edge, and partial f-holes in silhouette. Behind and beside it, show visible piano keys running vertically, with ivory keys aged and black keys in strong shadow. The middle forest should contain many dark pine trees at different depths, with misty green light behind them.

Visual style: Vintage classical album cover, noir poster design, tall condensed bold sans-serif typography similar to old concert posters, cream-white letters, muted red accent, forest-green haze, black vignette, worn paper texture, elegant but somber mood.

Constraints: Do not add people, headphones, musical notes, logos, watermarks, or extra text. Preserve the Spanish headline and the exact count of 4 text elements plus the bottom-left page marker.