I have both the old and new editions. The biography has been expended with a lot of new material, but the music is the same. Here's what Brian says:
This is a new 2013 edition of Fernando Ferandiere’s Arte de tocar la guitarra española (Madrid, 1799), a significant text in guitar history. I (Brian Jeffery) first published a facsimile edition of it in 1977, and here now is a new 2013 edition which includes:
– a complete facsimile reprint of the edition of Madrid 1799 edition.
– a new introduction of forty pages by me (Brian Jeffery) in both English and Spanish which brings our knowledge of Ferandiere up to date to 2013 and adds new information which is currently not available anywhere else. The complete text of this new introduction is printed in English, and then the complete text of the introduction is given again in Spanish.
– a complete English translation of Ferandiere’s text.
– and the musical examples from the original appendix, here also given additionally in modern notation.
181 pages. 16 x 23 cm (paperback size).
This is a book for anyone who is seriously interested in the history of the guitar
As for giving it a bit of oomph, be my guest!