Concert update

These shows were announced today by LiveNation...Mario Cantone at the Berklee Performance Center April 21, $40, on sale Saturday at 10 a.m.; the Strokes at Agganis Arena, April 25, $30, on sale Friday at noon; Linda Ronstadt at the Opera House, June 1, $38.50-$76.50, on sale Monday at 10 a.m.; and among several club shows, the gem is Toots and the Maytals at Avalon, April 19, $22.50, on sale Saturday at 10 a.m. Tickets are generally at the appropriate box office, Ticketmaster and www.teapartyconcerts.com, but there's always weirdness, for instance the Toots tix being at the Orpheum box office and not the Avalon, so call ahead to check.