Trombonists reading this will all know of Andre Lafosse, who wrote 2 study manuals in 1921. In 1946 he wrote a third, and all 3 are regarded as excellent material on which to learn the entire range of trombone technique. In the third book there is a set of 12 studies, often used as exam and audition pieces to this day. I’ve written 12 new ones, very much based on the originals, for the 21^st Century trombone student. Each one deals with exactly the same aspect of technique as the Lafosse studies but is more difficult and harmonically modern.