Präludium in e-moll (Die Kleine)

Nicolaus Bruhns (also Nikolaus, Nicholas; late 1665 – 29 March 1697 in Husum) was a Danish-German organist, violinist, and composer. He was one of the most prominent organists and composers of his generation.

He was born in Schwabstedt (Danish: Svavsted), a small settlement near Husum. He came from a family of musicians and composers. His grandfather, Paul (died 1655), worked as lutenist in Lübeck. His three sons all chose musical careers; Bruhns' father, also named Paul (1640–c. 1689), became organist at Schwabstedt, possibly after studying with Franz Tunder. Nicolaus was apparently a child prodigy: according to Ernst Ludwig Gerber, he could play the organ and compose competent works for keyboard and voice already at an early age. He probably received his first music lessons from his father.

At age sixteen, Bruhns, together with his younger brother Georg, was sent to Lübeck to live with his uncle Peter, who would teach Bruhns the violin and the viola da gamba. The two brothers also studied the organ and composition, Georg under Bernhard Olffen, organist of St. Aegidien, and Nicolaus under Dieterich Buxtehude. The latter, one of the best composers of his time, was so impressed with Bruhns' talents and progress that he considered him his best pupil and eventually recommended him for Copenhagen. There Bruhns worked as organist and violinist. On 29 March 1689 he competed for the position of organist of the Stadtkirche in Husum and was unanimously accepted. In a few months he was offered a position at Kiel, but declined when the authorities at Husum increased his salary. Bruhns remained in Husum until his untimely death in 1697, at the age of 31. His only son, Johan Paul, chose a career in theology. Bruhns was succeeded in Husum by his brother Georg.