grid.innerHTML = currentFiltered.map(item => // Create a unique object URL for each MIDI blob (on demand) const midiBlob = generateSimpleMidiBlob(item.title); const midiUrl = URL.createObjectURL(midiBlob); // We'll revoke after download or after some time; but for demo we keep. return ` <div class="midi-card" data-id="$item.id"> <div class="card-header"> <h3>🎼 $escapeHtml(item.title)</h3> <div class="composer">$escapeHtml(item.composer)</div> <div class="tags"> <span class="tag">$escapeHtml(item.difficulty)</span> <span class="tag">$escapeHtml(item.style)</span> <span class="tag">$escapeHtml(item.key)</span> </div> </div> <div class="card-body"> <div class="meta"> <span>⏱️ Tempo: $item.tempo</span> <span>🎵 $item.key</span> </div> <div class="preview-player"> <audio controls preload="none"> <source src="$midiUrl" type="audio/midi"> Your browser doesn't support MIDI preview. <a href="$midiUrl" download>Download MIDI</a> </audio> </div> <a class="download-btn" href="$midiUrl" download="$item.title.replace(/[^a-z0-9]/gi, '_').mid"> ⬇️ Download MIDI File </a> </div> </div> `; ).join('');

.search-box flex: 2; min-width: 200px;

.download-btn:hover background: #1e293b;

.card-header h3 font-size: 1.25rem; font-weight: 600; margin-bottom: 0.3rem;

.composer font-size: 0.85rem; color: #5b6e8c;

// Cleanup URLs after a delay to avoid memory leaks (not critical for demo) setTimeout(() => document.querySelectorAll('.midi-card audio source').forEach(src => const url = src.getAttribute('src'); if (url && url.startsWith('blob:')) URL.revokeObjectURL(url); ); , 60000);

.download-btn display: inline-flex; align-items: center; gap: 0.5rem; background: #0f172a; color: white; text-decoration: none; padding: 0.6rem 1.2rem; border-radius: 2rem; font-size: 0.85rem; font-weight: 500; transition: background 0.2s; border: none; cursor: pointer; width: 100%; justify-content: center;

.no-results text-align: center; grid-column: 1 / -1; padding: 3rem; background: white; border-radius: 2rem;