Harry Freistadt compiled the manuscripts left behind by his teacher and father-in-law, Max Schlossberg, after his death. The resulting method book was
Daily Drills and Technical Studies for Trumpet, first published in 1937 by J. & F. Hill before the copyright passed along to M. Baron Company in 1938. Max Schlossberg's son, Charles, edited an arrangement of the method for
trombone titled
Daily Drills and Technical Studies for Trombone. The daily drills consist of 156 exercises divided into eight parts: long note drills (37 exercises), intervals (11 exercises), octave drills (10 exercises), lip drills (11 exercises), chord drills (19 exercises), scale drills (27 exercises), chromatic scale drills (13 exercises), and short études (28 exercises). The étude labeled as exercise 156, now attributed to Guillaume Balay, has been omitted from the book after the 1941 edition. ==References==