[pshapiro99]

Few people know about an instrument called the "octave uke," but to my ear it sounds as pretty as a cello.

[mholt]

I appreciate this (as a cello player). I didn't know about the baritone uke, thanks for the videos!

[dhosek]

Speaking of 4(ish)-stringed instruments, the mandolin family has a whole set of instruments corresponding to all the orchestral strings. The common mandolin having a tuning identical to the violin, the mandola down a fifth with tuning matching the viola, the mandocello down an octave from the mandola to match the cello and the mandobass, like its orchestral cousin tuned in fourths EADG (this last is also the only one of the mandolin orchestra instruments to not have doubled strings in each course, although other mandolin family instruments have single strings in each course.