String-a-palooza and Hammond High Concerts are both "cluster" concerts, which means that they each involve all the feeder schools for either school. The String-A-Palooza concert will include OMHS, Lake Elkhorn Middle, Cradlerock Elementary, and Jeffers Hill Elementary. The Hammond concert will include Hammond High, LEMS, Thomas Viaduct MS, Patuxent Valley. These events help students see what it's like in the "next level" of orchestra. This means elementary kids can see how middle schoolers play, and middle school can see high school. They're also fun because there are so many kids playing all together.