Source of duos: Infantas (1579)
Fernando de las Infantas, Plura modulationum genera quae vulgo contrapuncta appellantur super excelso gregoriano cantu omnibus musicam profitentibus utilissima (Heirs of Girolamo Scotto, Venice 1579) RISM: I40
Ten textless duos on a cantus firmus – the Gregorian chant «Laudate Dominum omnes gentes» – plus an enigmatic canon by inversion.
contents
facsimiles
literature
notes
contents
1.48. Duo. [upper line:] Secunda vice vt iacet / [lower line:] Secunda vice in diapason.Double counterpoint at the octave: the rubrics suggest that the duo may be performed swapping the parts.
Bornstein, Infantas
2.49. Duo.The upper line is based on the solmization obbligo La sol fa mi.
Bornstein, Infantas
3.50. Duo.

Bornstein, Infantas
4.51. Duo.

Bornstein, Infantas
5.52. Duo.

Bornstein, Infantas
6.53. Duo.

Bornstein, Infantas
7.54. Duo.

Bornstein, Infantas
8.55. Duo.

Bornstein, Infantas
9.56. Duo.

Bornstein, Infantas
10.57. Duo.

Bornstein, Infantas
11.Duo.Textless canon by inversion.
The canon is placed at the very end of the opus and is not a setting of the Gregorian chant «Laudate Dominum omnes gentes». The original print gives the performers no hints about the nature of this canon the fact that it may be performed exchanging the order of the parts. The two versions end respectively in E in F.
Cerone (1613)Bornstein, Infantas
literature
Bornstein, Italian Duos, vol. I, p. 131-34, 153; vol. II, p. 327-29.A study of the Italian duo throughout the Renaissance and the Baroque.
notes

Infantas' work sets the Gregorian chant «Laudate Dominum omnes gentes» in between two and eight parts: the duos are only ten out of 101 pieces and are all textless.

Gallery of images from this source
Title-page Dedication Musical Example (Duo 11)