Tenor Guitar?

I’ve heard of all kinds of guitars — bass, electric, steel-string, nylon-string, cigar box — you name it! But, I’d never heard of a tenor guitar. Interestingly, it’s only a 4-string instrument. Standard tunings are CGDA or DGBE, or for Irish tuning, use GDAE. A standard six-string guitar is tuned EADGBE (more guitar tunings here). As usual, more information or purchase here.