The project ascribes in part to the publication of a book (about 500 pp) entitled Analytical Variations. The book consists of seven independent texts, which have in common that different music analytical methods become the subject of critical review and independent application. The aim is to produce research results that have been developed over a long time. Both books can be seen as enlargements of the approaches to critical, but also constructive, musically scientific debate that characterizes the two volumes released in 2013 and 2015.