fix: duplicate_clip_to_arrangement passes clip instead of clip_slot

[ldraney]

Summary

• Fix duplicate_clip_to_arrangement to pass clip_slot.clip instead of clip_slot
• Add null check to prevent errors when clip_slot is empty

Problem

The Track.duplicate_clip_to_arrangement() method in Ableton's Python API expects a Clip object, not a ClipSlot object:

Track.duplicate_clip_to_arrangement(clip, destination_time)

The current implementation passes the clip_slot directly, which causes a Boost.Python.ArgumentError:

Boost.Python.ArgumentError: Python argument types in
    Track.duplicate_clip_to_arrangement(Track, ClipSlot, float)
did not match C++ signature:
    duplicate_clip_to_arrangement(class TTrackPyHandle self, class TPyHandle<class AClip> clip, double destination_time)

Solution

Changed line 147 in track.py from:

track.duplicate_clip_to_arrangement(clip_slot, time)

To:

if clip_slot.clip:
    track.duplicate_clip_to_arrangement(clip_slot.clip, time)

Test plan

• Verified fix works in Ableton Live 12.3.2
• Clips are successfully duplicated from session view to arrangement view at specified beat positions
• Empty clip slots are handled gracefully (no error, just no-op)

🤖 Generated with Claude Code

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