As one of the leading operatic composers of his generation, Johann Simon Mayr nurtured a fascination with the chivalric stories of medieval England. Le due duchesse, an opera semiseria with buffa elements, is set during the reign of the 10th-century King Edgar. Huntsmen’s and Knights’ choruses and troubadour-like songs give great vivacity to a score that is both lyrical and dramatic. Mayr’s compound of Viennese Classicism and Italianate melodic beauty, allied to his ambitious writing and a skilful libretto, produced an important and influential opera couched in his own unmistakable idiom.

A performance like this makes me wonder why it isn’t (the Mass) performed more often… this mass is a treasury of beautiful sounds… I can’t imagine better readings than the ones here.

On this recording Miklós Spányi has exchanged his previous harpsichord or fortepiano for a tangent piano: it's like a fortepiano but has the strings struck vertically by tangents (as in the clavichord) rather than at an angle by hammers. Its tone could also be modified by raising the dampers completely or only in the treble, employing only one of each note's two strings (una corda), inserting a leather strip ('moderator') between tangents and strings, or creating a harp-like effect by damping the strings with small pieces of cloth.