Each CD volume contains a comprehensive booklet written by Richard Lester, giving a unique insight into some of the sonatas’ folk song and dance origins. In a separate booklet entitled ‘Flamenco Sketches’ that accompanies the whole set, he explores some of the flamenco melodies, harmonies and rhythms ingeniously woven into many sonatas. The fandango, bulerias and seguidilla, together with song/dances from other regions, like the jota, are described with musical examples in colourful rhetoric that evokes a spectacular and impassioned panorama of 18^th century Spain.

Volume 7 containing some more recently discovered and authenticated sonatas, is described in copious notes by W. Dean Sutcliffe, author of the Keyboard Sonatas of Domenico Scarlatti.