Weather Report - 8:30 Double LP
The album takes its name from the band's habit of starting their performance at 8:30 pm. At the time of the tour, the band was a quartet and would take the stage continuously for around two and a half hours, each of the members taking a solo. Wayne Shorter sometimes plays percussion instead of saxophone on stage, and on one of the studio tracks, the calypso inspired "Brown Street", Joe Zawinul's son Erich plays percussion with Erskine and Pastorius.
Jaco Pastorius played a notable solo on "Slang" which started with an out-of-time rendition of "Dolores" by Wayne Shorter, then melded a multi-part bass solo using a rack-mounted MXR digital delay, leading into references to "Third Stone from the Sun" by Jimi Hendrix, "Portrait of Tracy" from his solo work, then "The Sound of Music". He finished playing his bass with its own strap.
According to Peter Erskine, the band had planned for the entire album to be live, but an engineer accidentally erased some of the material, prompting the band to go into the studio to record the fourth side.