1 files changed, 77 insertions, 0 deletions
diff --git a/convert_track.py b/convert_track.py
new file mode 100644
index 0000000..ec9d62c
--- /dev/null
+++ b/convert_track.py
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+#!/usr/bin/env python3
+"""Convert .track files from beat-based to unit-less timing."""
+
+import re
+import sys
+
+def convert_beat_to_unit(beat_str):
+    """Convert beat value to unit-less (beat / 4)."""
+    beat = float(beat_str)
+    unit = beat / 4.0
+    return f"{unit:.2f}"
+
+def process_line(line):
+    """Process a single line, converting beat values."""
+    line = line.rstrip('\n')
+
+    # Skip comments and empty lines
+    if not line.strip() or line.strip().startswith('#'):
+        return line
+
+    # PATTERN line - add LENGTH 1.0
+    if line.strip().startswith('PATTERN '):
+        # Check if LENGTH already exists
+        if ' LENGTH ' in line:
+            return line
+        parts = line.split()
+        if len(parts) >= 2:
+            return f"PATTERN {parts[1]} LENGTH 1.0"
+        return line
+
+    # Event line (starts with a number)
+    match = re.match(r'^(\s*)([0-9.]+),\s*(.+)$', line)
+    if match:
+        indent, beat_str, rest = match.groups()
+        unit_str = convert_beat_to_unit(beat_str)
+        return f"{indent}{unit_str}, {rest}"
+
+    return line
+
+def main():
+    if len(sys.argv) != 3:
+        print(f"Usage: {sys.argv[0]} <input.track> <output.track>")
+        sys.exit(1)
+
+    input_file = sys.argv[1]
+    output_file = sys.argv[2]
+
+    with open(input_file, 'r') as f:
+        lines = f.readlines()
+
+    # Add header comment about timing
+    output_lines = []
+    output_lines.append("# Enhanced Demo Track - Progressive buildup with varied percussion\n")
+    output_lines.append("# Features acceleration/deceleration with diverse samples and melodic progression\n")
+    output_lines.append("#\n")
+    output_lines.append("# TIMING: Unit-less (1 unit = 4 beats at 120 BPM = 2 seconds)\n")
+    output_lines.append("# Pattern events use unit-less time (0.0-1.0 for 4-beat pattern)\n")
+    output_lines.append("# Score triggers use unit-less time\n")
+
+    # Skip old header lines
+    start_idx = 0
+    for i, line in enumerate(lines):
+        if line.strip() and not line.strip().startswith('#'):
+            start_idx = i
+            break
+
+    # Process rest of file
+    for line in lines[start_idx:]:
+        output_lines.append(process_line(line) + '\n')
+
+    with open(output_file, 'w') as f:
+        f.writelines(output_lines)
+
+    print(f"Converted {input_file} -> {output_file}")
+
+if __name__ == '__main__':
+    main()