musicales

Verb

dative form-of imperative object-plural object-third-person second-person singular with-voseo

musicarの2人称単数ヴォセオ命令形にlesを付加

English Meaning

second-person singular voseo imperative of musicar combined with les

Si ves a tus amigos cabizbajos, ¡musicales para levantarles el ánimo!

もし友達が落ち込んでいるのを見たら、彼らに音楽を奏でなさい！

If you see your friends feeling down, play music for them to lift their spirits!