Agostini has also appeared in many international music festivals, in Europe, the United States and Japan, performing chamber music with well-known, distinguished artists.

Together with violinist Yosuke Kawasaki (currently concertmaster of National Arts Centre Orchestra, Ottawa), James Creitz (former violist of the Academica Quartet)
and Sadao Harada (former cellist and founder of the Tokyo String Quartet), Federico Agostini founded the D’Amici String Quartet

Agostini’s Philips recordings with I Musici comprise Bach's and many Vivaldi’s violin concertos, including the Four Seasons, which was also filmed on location in Venice and is available on DVD. Other recordings include Fauré’s Piano Quartets (Claves) and an Hommage à Nathan Milstein, a selection of favorite virtuoso violin pieces (Live Notes, Japan) partnered by pianist Yasuo Watanabe. In 2017 he recorded the three Brahms Sonatas for violin and piano, with pianist Derek Han, published by Centaur.

Mr. Agostini maintains a very busy schedule as a teacher. He has served on the faculties
of the Conservatories of Venice and Trieste (Italy), the Staatliche Hochschule für Musik Trossingen in Germany, Indiana University Jacobs School of Music and the Eastman
School of Music in the United States.

During the academic year 2016-17, Mr. Agostini was a Guest Professor at the Tokyo Geidai University of Arts and Music and in 2019 has been appointed Visiting Professor at the Aichi Prefectural University of Arts in Nagoya, Japan.

His teaching activities include master classes at music institutions in the United States, Canada, Mexico, Chile, as well as in Japan, Korea, Italy, Germany, Denmark, Sweden,
and Australia.