Another tuning of this kind was developed by members of the Bashir family: The player uses an F-course on the bass strings, tuned another octave lower as in the above mentioned example; optional two F-strings can be put on, tuned in an octave-interval.
As with other instruments of the lute-family (among such different instruments like the mandolin and the sitar) the player makes the sound by picking the strings with a plectrum (pick).