قسمت 4: گروه در ویلای ساحلی تسومی برای تمرین جشنواره تابستانی جمع می‌شوند.

Mio finds a box filled with stuff from the previous light music club in the club room, including a cassette tape of the previous club's performance at the school festival. After listening to it, Mio is inspired to get the gang together to practice over the summer break for the upcoming school festival. Worried about cost, the girls turn to Tsumugi, who just so happens to have a villa along the coast. They travel by train to Tsumugi's beachside villa, where Mio is determined to practice, however she is outnumbered and ends up playing around with the girls instead. After eventually getting some practice done in the evening, Mio is awed by the sight of Yui playing guitar in front of some fireworks. Mio confesses to the others that she wants them to be as good as the old light music club, playing the cassette tape for them. However, when tape flips to the backside, Mio is horrified by the shrieking intro of a vocalist in the old club. To cheer Mio up, Yui plays a perfect guitar solo and learns a new trick of vibrato on the guitar. (Source: Wikipedia)

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