Blute nur, du liebes Herz!, composed by Johann Sebastian Bach in 1727, is a deeply moving soprano aria from his St. Matthew Passion (BWV 244). Sung by the character of Mary, it expresses profound maternal grief and anguish over her child's suffering, with poignant lyrics by Picander drawing from the biblical narrative. Bach's masterful orchestration features a haunting flute obbligato, tender strings, and expressive vocal lines that blend Baroque elegance with emotional inten