A really good athlete must get into shape, and he/she must stay in shape! The same holds true for a good trombone player. These etudes were designed for just that purpose and more: the exquisite self-satisfaction derived from playing them. They are tricky and they are difficult, but not too tricky, or too difficult.
Here's a chance to brush up on tenor and bass clef reading; flexibilities; tonguing (double & triple); pretty ballads; a jazz waltz; a slow blues that really moves; a smattering of dramatic climaxes; and just about anything else one needs in today's wonderful world of music.