Sinval Junior has extensive experience in music education, having served as a Professor de música at various institutions including Colégio Dom Bosco, Colégio Nossa Senhora da Glória, and Colégio Kennedy. Since January 2013, Sinval Junior has been a private music teacher and also teaches at the Prefeitura Municipal de Tupandi and Apae Brasil, focusing on music for both fundamental education and inclusive education. Additionally, Sinval Junior has commercial experience as a Representante comercial at WR Artes Gráficas and held a trainee position at Wise Up. Sinval Junior also owned Cantarolando espaço de música from March 2018 to June 2021.
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