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 importantrole 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.