A striking feature of Birdland is Pastorius picking harmonics on his fretless bass, although recordings exist of live performance of the theme prior to Pastorius joining the band when it was purely a keyboard section. The Birdland melody had been performed live by the band as part of Dr Honoris Causa, which was from Zawinul's eponymous solo album. Its opening track, 'Birdland', was a significant commercial success, something not typical of instrumental music. Heavy Weather is considered a landmark album in the jazz-rock or fusion movement of the 1970s. It is on the short list of LP's considered to be the greatest of all Jazz-Fusion recordings.Featuring the jazz standard 'Birdland', the album is one of the best-sellers in the Columbia jazz catalog. On Black Market, Pastorius played on two of the seven tracks, but here he is a full member of the band. Second album with bassist Jaco Pastorius. `Heavy Weather` is Weather Report's seventh album, released in 1977 through Columbia Records. Roy Haynes and tours the world, and produces 2 albums under the ECM label. With art music, ethnic music, r&b, funk and rock elements (in varying proportions throughout their career). In 1970, the group Weather Report was formed along with Wayne Shorter and Joe. Weather Report - Heavy Weather (1977) Report was an influential jazz fusion band of the 1970s and early 1980s combining jazz and latin jazz Weather Report - Heavy Weather (1977) Torrent: