Popular Hawaiian music with English verse (hapa haole) can be described in a narrow sense. Generally, songs are sung to the ukulele or steel guitar. A steel string guitar sometimes accompanies. Melodies often feature an intervallic leap, such as a perfect fourth or octave. Falsetto vocals are suited for such leaps and are common in Hawaiian singing, as is the use of microtones. Rhythm is mostly in duple meter. A musical scale that is unique to Hawaiian music imbues it with its distinct feel, and so is aptly named the Hawaiian scale.