When Metro Music, a leading publisher of Yiddish-language music, went out of business in 1970, it left behind a vast number of physical musical scores, for which there was little interest. Sidney Rimmer, a part-time cantor, preserved the collection in his Brooklyn garage until the National Yiddish Book Center acquired it in 1986. The Center catalogued the collection, supported by a grant from Mel and Shifra Gold. Once that process was completed, the Center offered it for sale, with preference given to libraries. See Source of Acquistion note.