[20th-Century American Composers] Autograph Letter Archive Regarding Music Listening Habits and InfluencesA highly interesting collection of 25 letters from mostly American (some of them, European born) composers active in the late twentieth century with comments on issues such as musical influence, listening habits and aesthetic preferences. We owe this treasure to Steven (or Steve) Juscik, the autograph collecting music lover in Indiana to whom these letters are addressed. He sent inquiries regarding the above issues to these composers. We do not know