"The first song on the Matrix Tapes is a languid, 13-plus-minute-long version of 'Waiting for the Man,' complete with a whistling break and two previously unreleased verses, seemingly made up on the spot. But what makes this collection essential is the cohesion of the band and the setlists: the shows find the Velvets at their absolute peak as a live unit, with Reed and Sterling Morrison's guitars—the former raucous and unhinged, the latter pristine and precise—meshing with an almost subconscious cohesion. The 42-track set finds the band cruising through some 22 different songs sprawling across their entire career: 'Sweet Jane' is rendered in versions much calmer than the familiar recording on Loaded, forceful on the first round (and with yet another unreleased verse), gentle on the second. Doug Yule introduces a loping melodic bassline into 'Heroin' (first night, second set) before moving over to organ. But most of all, the clarity of the sound—which is drastically improved from the Live 1969 album, where several of these songs were first released, and The Quine Tapes collection, which is rough-quality audience recordings of songs from the same set of shows—makes it feel as if the band is performing right in front of you." - Billboard