[citation needed] Alwin was the youngest of four sons of Carl Schroeder (Karl Schröder I, 1816–1890 or 1823–1889), the music director in Neuhaldensleben.
B. Andre at Ballenstedt and attended the Berlin Hochschule fur Musik, studying violin with De Ahna and music theory with Tappert.
Among Schroeder's publications during the Leipzig years were his Neue Tonleiter-Studien and Technische Uebungen for the development of left-hand technique for cellists and his edition of the six solo cello suites by J. S. Bach.
He taught him how to shoot and Schroeder, who had for the most part led a sedentary life indoors, became wildly enthusiastic about this manly pursuit and arrive one summer at the island with his cello and a shotgun.
He was extremely proud of his aim, and insisted upon having his trophies stuffed by the village taxidermist so he could take them home and show the Boston Symphony what a remarkable Nimrod he was.