Josquin Des Pres. The purpose of this book is to provide the aspiring bass player with a wide variety of finger exercises for developing the techniques necessary to succeed in today's music scene. It can also play an important role in a bass player's daily practising program. The 200 exercises are designed to help increase your speed, improve your dexterity, develop accuracy and promote finger independence. recommended by world-acclaimed bass players, music schools and music magazines, this is the ultimate bass handbook.