In 1974, Weather Report released their fourth album, "Mysterious Traveller", which featured a couple of lineup changes from their previous work. These included new bassist Alphonso Johnson, replacing Miroslav Vitous, and new drummer Ishmael Wilburn, replacing Eric Gravatt. The rest of the lineup remained the same: Joe Zawinul (keyboards), Wayne Shorter (saxophone), and Don Um Romao (percussion). "Mysterious Traveller" showcases the band's signature jazz-rock sound, led by Zawinul, with funk and ethnic influences permeating much of their jazz and rock repertoire. Musically, they continued to display rich instrumentation, with an adventurous rhythm section, Shorter's melodic saxophone, and Zawinul's brilliant performances on electric piano, synthesizers, and organ. The monumental and energetic "Nubian Sundance" opens with synthesizer sounds and layered crowd noises, all underpinned by powerful percussion and African chants. This standout track is followed by other noteworthy moments such as the intriguing "Scarlet Woman", the spacious "Blackthorn Rose", and the funky "Cucumber Slumber". The rest of the album follows a similar stylistic pattern of jazz, rock, funk, and world music, including the festive "Jungle Book" and the experimental, atmospheric jazz of "Mysterious Traveller".

