Due to migration and globalization, people with various roots are living in Japan. Tokyo and Osaka as well as local cities like Kobe and Oizumi Town have an increasing rate of population with foreign roots. In this circumstance, multi-musicality has been developed in Japan. This panel depicts this phenomena from the perspectives of isolation and integration, focusing on Brazilian music and Indian music in Japan. What is the relevance of these music cultures to Japan: What extent are these music cultures integrated to a Japanese society? Brazilian and Indian communities and their music in Japan can illustrate cultural isolation and integration in a host society. Naturally, as both Brazilian and Indian communities hold a rigid cultural core and identity, they have a language-cultural barrier within the Japanese society: some of their music cultures are not visible and isolated from Japanese people. However, music-cultural festivals, like Asakusa Samba Carnival and Namaste India in Tokyo are the example of bridging foreign cultures in Japan: Japanese and people with foreign roots can mix there and more than 300 thousands of visitors are enjoying them every year. The last question is whether these communities can interact each other and proceed towards integration.