The ukulele is an instrument with a long history and broad applications in a wide range of music genres. Ukuleles vary in size, tuning and uses. The classic size is the soprano ukulelethe soprano ukulele, which is also ideal for beginners. Ukuleles are also available in concert, tenor and baritone sizes. There are also acoustic-electric models that can be plugged into amps, making it possible to work further with the sound.