On two separate nights last week, Grosse Pointe North High School’s gymnasium came alive with the sounds of trombones and baritones, violins and cellos. A combined nine bands from Ferry, Monteith, Mason and Poupard elementary schools, Parcells and Brownell middle schools and North high school performed about 20 songs Tuesday, Jan. 15, at the annual North-end Band-O-Rama. The concert opened and closed with North’s symphony band, with selections from the sixth grade bands, seventh grade cadet bands, North’s pep band and drumline, fifth grade bands, eighth grade concert bands and North’s jazz and concert bands played between.The next day, all the district’s orchestras filled the gym for the Grosse Pointe Public School System String Extravaganza 2013, a program of about 13 song selections, ranging from Lady Gaga to Piotr Tschaikovsky. Similar to the Band-O-Rama, one group, the high school orchestra, opened and closed the program, while the sixth grade orchestra, Grosse Pointe South High School chamber orchestra, seventh and eighth grade orchestra, fifth grade orchestra, North high school chamber orchestra and high school string orchestra made up the show’s remaining line-up. Upcoming performances include the High School District Solo and Ensemble Festival Saturday, Jan. 26, and the Middle School District Solo and Ensemble Festival Saturday, Feb. 2, both at Rochester High School.