In 1999 Tsuyoshi Niwa Quartet started to perform in New York. For the group, Tsuyoshi chose his closest friends, who are yet most talented young musicians in town, like Otis Brown III (drums) from Joe Lovano Trio, and Leo Tardin (piano), a renowned pianist from Switzerland. The quartet released Tsuyoshi's second CD, "Internal Dance" in 2000. In 2002, Tsuyoshi did a colaboration with actors called "D" directed by Chinatsu Kudo.
In 2003, Tsuyoshi flew to Rome, Italy for a recording session of an EMI recording artist, Amalia Gre. In this occasion Tsuyoshi met the producers of Alfamusic (Alessandro Guardia and Fabrizio Salvatore) and together they started to plan the new version of CD, Internal Dance, adding tracks with Italian musicians.
In May 2004, a recording session was held at Alfamusic studio in Rome.
Three new tunes were performed by Tsuyoshi and his new friends and talented Italian jazz players, Riccardo Biseo (piano), Francesco Puglisi (bass), and Nicola Angelucci (drums).
September 2004: Alfamusic announce the publishing of the new Internal Dance Album.