These are contemporary in nature, but use traditional notation. All are in score form, with 10, 11, and 12 being for quartet, and 1 thru 9 for duet. The music is in score form - even the 3 quartets. All parts are always in bass clef, with the ranges running from mid-low to Bb/C above the staff. The high range playing is fairly evenly distributed among all the parts.