In A Chord, a female vocal trio with a repertoire covering various music styles and time periods, will perform from 5:30 to 6:30 p.m. Wednesday, July 25, weather-permitting, at Auburn’s Festival Plaza. The performance by Ruth Burke of Auburn, Lauren Haven of Dresden and Wendy Morton of Bath precedes the Auburn Community Concert Band’s weekly summer concert series. Starting at 7 p.m., the band will present “Music of Famous Musicians,” a 75-minute performance of hit songs by Ray Charles, Elton John, Neil Diamond, Stevie Wonder, Phil Collins and Michael Jackson. The concert is free. Bring a lawn chair. Rain site: ballroom at the Hilton Garden Inn at Great Falls Plaza. For more information, call the Auburn Recreation Department at 333-6601, ext. 2108, or visit www.auburncommunityband.com.