Mastodon and Clutch Play Stage AE; Last Day for Pittsburgh Opera’s “Daughter of the Regiment” (CPs Sun., 5/10/15)

1) In 1909, a contractor working along the banks of the Allegheny River found a mastodon’s tusk. Tonight another Mastodon roams the banks of the Allegheny. Wandering north from Atlanta, Ga. (most other mastodons went south), this one is a progressive sludge metal band. Instead of ending up trapped in a tar pit, Mastodon can be found writhing  at the edge of a mosh pit. The band’s 2004 release, Leviathan, was based on the novel Moby Dick and named album of the year by several music publications. Once More ‘Round the Sun was released in June of 2014 and the band is currently working on a new album for release later this year. Mastodon is teaming up with Clutch—a Fredrick, Maryland rock band—for The Missing Link Tour. Graveyard will bring the crowd to life. Doors open at 5:30 p.m. Stage AE, 400 North Shore Dr., North Shore.

2) Soprano Lisette Oropesa has a dual challenge in Pittsburgh: She’s performing the role of Maria in Daughter of the Regiment with the Pittsburgh Opera—and she’ll also be running the Pittsburgh Marathon. Oropesa is singing for the first time in the title role of a young woman raised by a regiment of soldiers, but it’ll be the sixth marathon for the seasoned runner. Star tenor Lawrence Brownlee plays alongside her as love-struck Tonio, who joins the regiment to be with Maria, only for her to be promised to someone else. His role includes the famous aria “Ah, my friends” (“Ah, mes amis”), requiring no less than nine high Cs. Donizetti’s romantic comedy is sung in English and conducted by Antony Walker. 2 p.m. Ends today. Benedum Center, 237 7th St., Cultural District.

3) Our beloved Buccos take the diamond again today against the St. Louis Cardinals. It’s also Kids Day, with a Family Fun Zone outside the ball yard beforehand, and all fans 14 have a chance to run the bases after the game. All Mom’s receive a Pirates reusable tote bag. First pitch is at 1:35 p.m. PNC Park, 115 Federal St., North Shore.