瑞士几何风格音乐海报
一款受包豪斯风格启发的抽象排版海报，适用于实验音乐系列或文化活动。
Goal: Create a clean Swiss modernist typography poster for an experimental music event, using precise geometric abstraction and bold asymmetrical layout.
Canvas: Vertical poster, 3:4 aspect ratio, warm off-white paper background with subtle print texture. Use a strict grid, thin gray construction lines, and high-contrast black, red, and one blue accent.
Layout: The composition is split by a thin vertical center line and a thin horizontal line across the lower third. The upper half contains a large abstract circular sound-wave motif centered slightly above the middle, crossing the vertical axis. The lower right contains the event typography block, aligned left. Leave generous negative space and keep the design crisp, flat, and print-like.
Geometric elements: Include exactly 7 main geometric feature groups: 1 large set of fine concentric gray circles around the center, 1 thick black partial ring on the upper right, 1 red central circle partially overlapped by white and black circular segments, 1 cluster of thin vertical gray lines near the upper left edge, 1 cluster of thin horizontal gray lines crossing from the left into the center, 1 thick red quarter-arc sweeping upward from the lower left, and 1 small solid blue circle below the main composition. Add exactly 7 small black dots in a horizontal row to the right of the main circle. Include a black semicircular shape cropped on the left side below the horizontal divider.
Text content: Set the main headline in bold uppercase black sans-serif: {argument name="headline text" default="SONIC STRUCTURES"}. Under it, add the small subtitle: {argument name="subtitle text" default="experimental music series"}. Below a thin divider line, set the location and date in bold red uppercase: {argument name="location" default="ZÜRICH"} and {argument name="date" default="12–14 OCT 2026"}. Below another thin divider line, add the small black details: {argument name="venue and time" default="Tonhalle Forum / 20:00"} and a final genre line reading "electronic / chamber / improvisation".
Visual style: Bauhaus-inspired Swiss International Style, experimental music festival poster, sharp vector geometry, balanced asymmetry, bold Helvetica-like typography, minimal palette of black, red, blue, gray, and off-white. Use clean flat shapes, no shadows, no photographs, no gradients, no decorative borders, no watermark.目标：创作一张简洁的瑞士现代主义排版海报，用于实验音乐活动，运用精确的几何抽象和大胆的非对称布局。
画布：竖版海报，3:4 纵横比，暖白色纸张背景，带有微妙的印刷纹理。使用严格的网格、细灰色辅助线，以及高对比度的黑色、红色和一种蓝色作为点缀。
布局：构图由一条细垂直中心线和一条横跨下三分之一处的细水平线分割。上半部分包含一个大型抽象圆形声波图案，位于中心偏上位置，横跨垂直轴。右下角包含活动排版块，左对齐。留出充足的负空间，保持设计清晰、扁平且具有印刷质感。
几何元素：包含 7 组主要的几何特征：1 组围绕中心的大型精细同心灰圆，1 个右上角的黑色粗半环，1 个被白色和黑色圆形片段部分重叠的红色中心圆，1 组靠近左上边缘的细垂直灰线，1 组从左侧横跨至中心的细水平灰线，1 个从左下角向上延伸的红色粗四分之一圆弧，以及 1 个位于主构图下方的小型实心蓝圆。在主圆右侧水平排列 7 个小黑点。在水平分割线下方左侧包含一个被裁切的黑色半圆形形状。
文本内容：主标题使用粗体大写黑色无衬线字体：{argument name="headline text" default="SONIC STRUCTURES"}。下方添加小字副标题：{argument name="subtitle text" default="experimental music series"}。在一条细分割线下方，用粗体红色大写字母设置地点和日期：{argument name="location" default="ZÜRICH"} 和 {argument name="date" default="12–14 OCT 2026"}。在另一条细分割线下方，添加黑色小字详情：{argument name="venue and time" default="Tonhalle Forum / 20:00"}，以及最后一行流派说明 "electronic / chamber / improvisation"。
视觉风格：受包豪斯启发的瑞士国际主义风格，实验音乐节海报，锐利的矢量几何，平衡的非对称性，大胆的 Helvetica 类排版，黑色、红色、蓝色、灰色和暖白色的极简配色。使用干净的扁平形状，无阴影，无照片，无渐变，无装饰边框，无水印。