v. 1-4. First grade of difficulty -- v. 5-8. Second grade of difficulty -- v. 9-12. Third grade of difficulty -- v. 13-15. Fourth grade of difficulty -- Supp. I. 112 melodies in the first position : for two violins / by Alwin Kappelsberger (c1924) -- Supp. II. Remarks on interpretation ; Remarks on the tremolando ; 40 duettinos for two violins