When Jaco appeared on his own debut, Jaco Pastorius (1976), the whole premise shifted. Here was someone playing long lyrical lines in the upper register, using harmonics like a harpist, soloing with a horn player's confidence — all while still locking down a groove that made your body move.
The fretless bass was central to it. By removing the frets from his Fender Jazz Bass, Jaco could slide between pitches the way a human voice or a bowed instrument does. That vocal, slightly "mwah"-ing tone became his signature — identifiable within a couple of notes. But the technique was only part of the story. He had extraordinary ears and a rhythmic sensibility drawn from R&B, funk, and the Caribbean music he grew up on near Fort Lauderdale.
His years with Weather Report, the fusion group led by Joe Zawinul and Wayne Shorter, produced some of his most celebrated work. Heavy Weather (1977) became one of the best-selling jazz-adjacent records of its era — the band had simply never sounded this alive.
By the early 1980s Jaco was struggling seriously with mental illness and substance abuse. He died in 1987 following a violent altercation in Fort Lauderdale, at thirty-five. What he accomplished in roughly a decade of recorded work remains genuinely remarkable. Full catalog on his artist page.