Prelude & Fugue in C-Sharp Minor (Well-Tempered Clavier, Book I, No. 4), BWV 849 - J.S. Bach: Prelude & Fugue in C-Sharp Minor (Well-Tempered Clavier, Book I, No. 4) , BWV 849 - Prelude (第4番 嬰ハ短調:プレリュード|ダイ４バン)