A ukulele, also spelled ukelele, is in the family of stringed instruments and looks like a small, four-stringed version of a guitar. Also called a “uke,” it is tuned and played just like a guitar, with tuning going from the top string to the bottom string using G C E and A on the piano, though the ukulele is usually tuned an octave higher than the guitar. It comes in four types, or sizes: the soprano, the concert ukulele, the tenor, and the baritone.