docs: musicgen has no per-track sidecar JSON (folder tree fix)

fix MTG preview parquet: 10-row row groups (viewer scan limit)

fix MTG preview parquet: 10-row row groups (viewer scan limit)

rename viewer configs to *_preview; correct size figures (240/250 GB)

remove stray tool-state files (scripts/.omc)

scripts: add generation pipeline (A2/B/C) with secrets removed

C1/C2: regenerate 16 orphan mixes with sidecar JSONs (complete 6000+6000 pairs)

docs: remove emojis; quick start = download-based

docs: final coherent dataset card (preview-vs-full, download guide, structure, citation)

docs: clarify viewer=100-row samples; add full-dataset download guide (raw folders)

complete raw data (22 remaining files) + HF Papers link

Update README.md

viewer: uniform 100-row sample previews for all splits (full data in raw folders)

fix: close YAML front matter delimiter

fix: clean YAML front matter (remove corrupted dataset_info merge, explicit 7 configs)

viewer: audio configs -> parquet paths

audio parquet: A:C_mixing_audio/C2_crossfade (2 shards)

audio parquet: A:C_mixing_audio/C1_concat (2 shards)

audio parquet: A:B_hybrid_audio/B9_repaint (2 shards)

audio parquet: A:B_hybrid_audio/B8_edit (2 shards)

audio parquet: A:B_hybrid_audio/B7_variation (2 shards)

audio parquet: A:B_hybrid_audio/B6_human_lyrics_ai_gen (2 shards)

audio parquet: A:B_hybrid_audio/B4_professional_human_mix (2 shards)

audio parquet: A:B_hybrid_audio/B3_mastered (2 shards)

audio parquet: A:B_hybrid_audio/B2_human_mastered_ai_dsp (2 shards)

audio parquet: A:B_hybrid_audio/B1_ai_mastered_human (2 shards)

audio parquet: A:A2_fake_audio/lyria_pro3 (57 shards)

audio parquet: A:A2_fake_audio/musicgen (10 shards)

audio parquet: A:A2_fake_audio/acestep (26 shards)

audio parquet: A:A1_real_MTG_audio/mtg (97 shards)

links parquet: A1_sonics_links/sonics

links parquet: B5_youtube_links/b5

links parquet: A2_fake_links/mureka

links parquet: A2_fake_links/udio

links as parquet: A2_fake_links/suno

Add metadata.csv to audio folders (viewer metadata)

Restructure C2_mixset_crossfade d1 (10k/dir limit fix)

Restructure C2_mixset_crossfade d0 (10k/dir limit fix)

Restructure C1_mixset_concat d1 (10k/dir limit fix)

Restructure C1_mixset_concat d0 (10k/dir limit fix)

Restructure B2_human_mastered_ai_dsp d1 (10k/dir limit fix)

Restructure B2_human_mastered_ai_dsp d0 (10k/dir limit fix)

Restructure B1_ai_mastered_human__MTG_sonicmaster d1 (10k/dir limit fix)

Restructure B1_ai_mastered_human__MTG_sonicmaster d0 (10k/dir limit fix)

Restructure lyria-pro3 d1 (10k/dir limit fix)

Restructure lyria-pro3 d0 (10k/dir limit fix)

Restructure acestep d1 (10k/dir limit fix)

Restructure acestep d0 (10k/dir limit fix)

Card v6: HAIM identity + preview-first, category descriptions, compact composition table

Card v5: SONICS-style layout (abstract/links/composition/metadata-properties tables)