If you want to see this theme executed perfectly, avoid the trashy isekai and look for these titles:
The characters in the series are well-developed and complex, with each girl having her own distinct personality, background, and motivations. Yui, the main protagonist, is a kind and optimistic girl who becomes the glue that holds the band together. Aika, the band's guitarist, is a confident and outgoing girl who often clashes with Yui, but ultimately becomes a close friend. Ritsu, the bassist, is a quiet and reserved girl who is initially hesitant to join the band, but eventually becomes a key member. gakuen de jikan yo tomare
The soundtrack, composed by and Akiri Manabe , perfectly complements the anime's tone and atmosphere. The music is catchy, soothing, and often humorous, adding to the overall sense of warmth and comfort. If you want to see this theme executed