qPress Music Published just released 2 of my latest books:
Target practice will help you to play with more accuracy and security. It’s best to do these exercises after a proper warmup. By gradually expanding the intervals (and range) you will get more confident hitting the notes in all registers and in any context. I have added 12 drones which will help you to play in the centre of the notes with perfect intonation. Start playing the drone with the same note as the first note of an exercise and then play this exercise in any tempo you want.