TATSUYA MARUYAMA is a guitarist / composer based in Japan. He started playing guitar at the age of 13, and started musical activities on YouTube when he was 14 years old. He produces music with the theme of "daily life". In 2014, he won a prize of the Morris Fingerpicking Contest. In 2019, his YouTube channel videos exceeded 4 million views. He is not only a guitarist but also a graphic designer.