Stop ignoring .mid so example scores ship

Add source MIDI for the elegy examples

Ensure source MIDI present

Ensure source MIDI present

Remove stale duplicate example

Card: feature the elegy pair

Examples: elegy only (before/after pair)

Point audio links at local examples

Add audio examples (elegy + fantaisie before/after)

Add audio examples to the card

Clarify: symbolic MIDI model, not audio generation

Maurice: weights, model card, prior art + architecture notes

initial commit