The most common tuning is D-G-B-D ( from lower to higher pitches ) ; other tunings include D-A-B-E ( Portuguese ancient tuning , made popular by Júlio Pereira ) and G-G-B-D and A-A-C # - E. Guitarists often use D-G-B-E tuning to emulate the highest four strings of the guitar .
Other tunings include D-A-B-E ( Portuguese old tuning , made popular by Júlio Pereira ) and G-G-B-D and A-A-C # - E. Guitarists often use D-G-B-E tuning to imitate the highest four strings of the guitar .