I suggest you view these exercises on Youtube. Just click on the Youtube icon on the bottom right side of the video. On youtube you will find an explanation of the exercise, as well as information on grading.
Clarinet Voicing Exercise
Alto Saxophone Voicing Exercise
Tenor Saxophone Voicing Exercise
Trumpet Lip Slur Exercise
Trombone Lip Slur Exercise
Baritone or Tuba Lip Slur Exercise
