Quicksand’s influential debut album, “Slip” — a potent fusion of punk fury, metallic heft, and artful nuance — turns 20 this year, and the band itself is on its first national tour in 15 years. But Quicksand isn’t engaging in a contrived celebration of “Slip,” so rather than play the whole album Monday at the Paradise where the tour began, Quicksand simply bashed out a vital and vibrant set.

While all of the songs performed dated back to the band’s brief mid-’90s run, Quicksand made the material feel renewed. Guitarist and singer Walter Schreifels delivered old hymns to angst, anxiety, and disgust with a lighter touch that revealed a cleaner edge to the work. And instead of sounding like nostalgia, the songs came across as feeling like musical DNA; maybe the members of Quicksand are not as angry today, but they still play with urgency and concern.