Gassho 合唱 means choir or choral activity; 合唱コンクール gassho concour means choral or singing competition and gassho ensoku means choral concert.
Check out this schoolpage: Shonan Gakuen’s gassho webpage
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Gassho 合唱 means choir or choral activity; 合唱コンクール gassho concour means choral or singing competition and gassho ensoku means choral concert.
Check out this schoolpage: Shonan Gakuen’s gassho webpage