Cedar Park strengthens its case as Austin’s best suburb with the recent opening of Lakeline Park – a 200-acre green space with a man-made lake for fishing and kayaking, sports fields, a playground, and a pavilion. That stage, built for community performances, gets a marquee christening with Dinosaur Jr., Soul Asylum, and A Giant Dog.: One of several bands that can be justifiably professed as godfathers of alternative rock, Dinosaur Jr. came into consciousness on Eighties punk stable SST Records before evolving into grunge-era MTV breakouts with hits like “Start Choppin’” and “Feel the Pain,” though 1987 cut “Sludgefeast” appropriately highlights Dino Jr.’s pillars: gloriously heavy guitar, shy vocals, and loud-soft dynamics. After shutting down in 1997, guitarist/singer J Mascis, bassist Lou Barlow, and drummer Murph reconvened in 2005 for one of the sturdiest seconds acts in alt.: The notoriously decibel-pushing trio’s a bold choice for an outdoor show in the ’burbs, but they follow a rare acoustic performance from Soul Asylum, best known for their mid-Nineties super-singles “Runaway Train” and “Misery.” Much of their catalog reflects a strain of rock similar to Minnesotan compatriots the Replacements. Austin favorites A Giant Dog set the stage with heart-on-sleeve punk on the grassy, general admission amphitheatre.