Bärenreiter’s Concert Pieces: Friedrich Seitz Student Concerto in D major Op22. BA 8979 Violin and Piano. The series Bärenreiter’s Concert Pieces presents further editions with works by Oskar Rieding, Friedrich Seitz and Joseph-Hector Fiocco. All editions contain a solo violin part and a piano part for the piano accompanist. The series is edited by Kurt Sassmannshaus, the internationally-renowned violin teacher and co-author of the "Early Start" Sassmannshaus violin school tradition.