Leon Botstein attracted an impressive crowd to Avery Fisher Hall on the afternoon of Sunday, January 25, to hear him conduct the ASO in a program of extremely obscure music: orchestral works from "the other Germany," that is the German Democratic Republic (1949-1990), or East Germany. It is most unjust that this music is as neglected as it is today, since every work on the program was soundly constructed and interesting, even astonishing at times. All were worth a second or a third hearing, or even more. Fortunately most of the works on the program are available on CD.