classical: { bpm: 100, voice: 'female1', instrument: 'strings', harmony: 'full' },
jazz: { bpm: 120, voice: 'male1', instrument: 'piano', harmony: 'seventh' }
};

const preset = presets[presetName];
if (preset) {
this.applyPreset(preset);
this.showMessage(`预设加载: ${presetName}`, 'success');
}
}

// 应用预设
applyPreset(preset) {
if (preset.bpm) this.setBPM(preset.bpm);
if (preset.voice) this.selectVoice(preset.voice);
if (preset.instrument) this.selectInstrument(preset.instrument);
if (preset.harmony) this.setHarmonyType(preset.harmony);
}

// 导出音频
async exportAudio() {
this.showMessage('音频导出功能开发中...', 'info');
// 实现音频导出逻辑
}

// 显示帮助
showHelp() {
const helpText = `
🎵 超高级音乐编排系统 - 使用指南

系统思维设计:
• 模块化架构，各系统独立运行
• 事件驱动通信，降低耦合度
• 性能监控，实时优化资源

过程思维优化:
• 分阶段初始化，确保系统稳定
• 异步处理，避免阻塞主线程
• 错误恢复，提高系统鲁棒性

全局与局部思维:
• 全局状态管理，统一数据流
• 局部组件优化，提升响应速度
• 缓存系统，减少重复计算

极限思维保障:
• 内存管理，防止内存泄漏
• 错误边界，确保系统稳定
• 性能监控，及时发现瓶颈

快捷键:
• 空格: 播放/暂停
• ESC: 停止
• Ctrl+R: 开始/停止录制
• Ctrl+S: 保存预设
`;

alert(helpText);
}

// 从之前的系统继承的核心方法
parseLyrics(lyrics) {
// 实现歌词解析逻辑
return [];
}

calculateTotalDuration() {
// 计算总时长
return this.systemState.sections.reduce((total, section) => total + section.duration, 0);
}

calculateInterludeDuration(section) {
// 计算间奏时长
return 8 * (60 / this.musicSystem.bpm);
}

calculateLineDuration(line) {
// 计算行时长
return 2.0 + line.length * 0.1;
}

getMusicStyleForSection(sectionType) {
const styles = {
verse: 'verse',
chorus: 'chorus',
'pre-chorus': 'pre-chorus',
bridge: 'bridge',
interlude: 'interlude'
};
return styles[sectionType] || 'verse';
}

// 占位符方法 - 需要根据具体需求实现
initializeHarmonyDatabase() {}
initializeRhythmPatterns() {}
initializeMusicStyles() {}
generateChordProgression(style, length) { return []; }
getChordVoicing(chord, instrument) { return []; }
createHarmonyForMelody(melody, style) { return []; }
createRhythmPattern(style, complexity) { return []; }
applyGrooveToPattern(pattern, groove) { return pattern; }
generateRhythmAccompaniment(harmony, style) { return []; }
generateIntelligentChords(style, duration) { return []; }
generateIntelligentMelody(style, duration) { return []; }
playChordProgression(chords, instrument) { return Promise.resolve(); }
playMelody(melody, instrument) { return Promise.resolve(); }
generateHarmonyNotes(text, duration, style) { return []; }
playNoteWithEffects(frequency, duration, volume, instrument) {}
generateInstrumentalMusic(instrument, duration, style) { return Promise.resolve(); }
generateSyntheticSpeech(text, voiceType, emotionScores) { return Promise.resolve(); }
findSuitableVoices(voiceType) { return []; }
applyEffect(effect, value) {}
saveRecording() {}
}

// 可视化组件类
class WaveformRenderer {
constructor(containerId) {
this.container = document.getElementById(containerId);
this.canvas = null;
this.context = null;
}

initialize() {
this.canvas = document.createElement('canvas');
this.context = this.canvas.getContext('2d');
this.container.appendChild(this.canvas);

this.resize();
window.addEventListener('resize', () => this.resize());
}

resize() {
const rect = this.container.getBoundingClientRect();
this.canvas.width = rect.width;
this.canvas.height = rect.height;
}

update() {
// 实现波形更新逻辑
const width = this.canvas.width;
const height = this.canvas.height;

this.context.clearRect(0, 0, width, height);

// 绘制波形
this.context.beginPath();
this.context.moveTo(0, height / 2);

for (let x = 0; x < width; x++) {
const y = height / 2 + Math.sin(x * 0.05 + Date.now() * 0.01) * 20;
this.context.lineTo(x, y);
}

this.context.strokeStyle = 'var(--color-primary)';
this.context.lineWidth = 2;
this.context.stroke();
}
}

class SpectrumAnalyzer {
constructor(containerId) {
this.container = document.getElementById(containerId);
this.bars = [];
this.initializeBars();
}

initialize() {
// 频谱分析器初始化
}

initializeBars() {
for (let i = 0; i < 64; i++) {
const bar = document.createElement('div');
bar.style.cssText = `
position: absolute;
bottom: 0;
left: ${(i / 64) * 100}%;
width: 3px;
height: 10px;
background: linear-gradient(to top, var(--color-accent), transparent);
border-radius: 2px 2px 0 0;
transition: height 0.05s ease;
`;
this.container.appendChild(bar);
this.bars.push(bar);
}
}

update() {
this.bars.forEach((bar, index) => {
const height = 10 + Math.sin(Date.now() * 0.02 + index * 0.5) * 20 + Math.random() * 15;
bar.style.height = `${height}px`;
bar.style.background = `linear-gradient(to top, hsl(${(index * 10) % 360}, 70%, 60%), transparent)`;
});
}
}

class TimelineRenderer {
constructor(containerId) {
this.container = document.getElementById(containerId);
}

initialize() {
// 时间线渲染器初始化
}

update() {
// 时间线更新逻辑
}
}

// 🚀 启动系统
document.addEventListener('DOMContentLoaded', function() {
window.ultraMusicSystem = new UltraAdvancedMusicSystem();

console.log('🎵 超高级音乐编排系统已启动');
console.log('💡 系统特性:');
console.log(' - 系统思维: 模块化架构，事件驱动');
console.log(' - 过程思维: 分阶段初始化，异步处理');
console.log(' - 全局思维: 统一状态管理，性能监控');
console.