Book VI. Duets up to the sixth and seventh positions,

by H. Ries, Haydn, and Alard. (11806 s).

Book VIA. Duets up to the sixth position, by Hauptmann and Blumenthal. (11806 a).

An excellent collection of graduated Duets revised by Ernst Heim; each book corresponds in difficulty with the same book of his Violin Studies “Gradus ad Parnassum”, see page 115, and his Violin and Piano pieces, “Palaestra”, see page 151.

=Hauptmann, M.= Op. 2. 2 Duets. (1082). — Op. 16. 3 Duos. (5611).

=Hermann.= Op. 26. Morceaux mélodiques. Bks. 4, 5. (5328 d, e).

=Kayser, H. E.= Violin Studies, carefully revised, fingered, and with instructive annotations by Ernst Heim:—

16 Studies (comprising studies in the half, 1st, 2nd, 3rd, 4th, 5th, 6th, and 7th Positions). Op. 28. (5619).

Nos. 1-9 belong to II; 10 and 11 to III.

16 Studies (to follow the 36 Studies, Op. 20). Op. 30. (5620).

Nos. 1-3, 7, 10, 14, 15 belong to II; Nos. 6 and 8 to III.

=Mayseder.= 3 celebrated Duets. Op. 30, 31, and 32. (10007 a-c).

=Ries, H.= Progressive Duets. (Ernst Heim).