Duduk Virtuoso: Scales and Exercises for Traditional and Extended Range Armenian Duduk

Great book. Includes major and minor scales for duduk, arpeggios and exercises for every scale.

The book is decent but it isn't incredibly useful for traditionally ranged duduks and focuses mostly on the extended range duduk. I am sure if you have one it is an excellent resource.

Readers have to know reading music prior to purchase, shows scales and practicing for notes, but no other metric. Printed in three languages.