The recently discovered Neumeister Chorales consist of 82 organ chorales of various composers (38 thought to be by J. S. Bach) compiled by Johann Gottfried Neumeister (1757-1840). The manuscript was passed onto Christian Heinrich Rinck (1770-1846), whose library was bought by Lowell Mason in 1852. Mason's collection was bequeathed to Yale University at his death in 1873. There it lay for over 100 years until discovered by Hans-Joachim Schulze and Christoph Wolff in 1985.