As usual Bing keeps things pretty simple.
I have other books by BING
Learned alot about the fretboard, pickup amplifiers and more.
I also had to get a L R Braggs acoustic D.I. because I didn't have a preamp in my dulcimer I just had a standard pickup.
I enjoy the exercises in the books
Over all it is a very good book very educational.
I highly recommend this book to anyone who is looking forward are to playing the bass dulcimer.