Short answers, pulled from the story.
Kakifly began writing the K-On! manga series in 2007 and released the first chapter during May of that year. The four-panel comic strip ran until October 2010 before relaunching in April 2011 to conclude by June 2012.
Naoko Yamada directed the thirteen-episode anime adaptation of K-On! which aired between April 3 and the 26th of June 2009 on TBS in Japan. Seven Blu-ray/DVD compilation volumes were released by Pony Canyon starting the 29th of July 2009 and ending the 20th of January 2010.
Yui Hirasawa plays a Heritage Cherry Sunburst Gibson Les Paul Standard electric guitar while Mio Akiyama uses a left-handed 3-Color Sunburst Fender Jazz Bass. Ritsu Tainaka plays drums with a yellow Rick Marotta Signature Yamaha Hipgig drum kit and Tsumugi Kotobuki handles keyboards with a Korg Triton Extreme 76-key keyboard.
The K-On! film opened in Japanese theaters on the 3rd of December 2011 and grossed over ¥1.6 billion by the end of its run. Total earnings reached ¥1.6 billion after earning ¥317 million from its opening weekend across one hundred thirty-seven theaters.
Toyosato Elementary School in Shiga Prefecture served as the model for Sakuragaoka High School in the anime series. The school opened portions of itself to the public as an exhibit featuring items seen in the show and experienced increased tourism due to anime pilgrimage phenomena.