They're not Urtext.
Everybody hear seems to think that schirmer is a horrible publishing company, please let me know why. I have a number of works published by them that I think are excellent because they do not have, or have verey few, of those stupid fingering numerals; the ones I have are checked from multiple sources; and they have good intro texts. Please comment.
In general I agree with Floristan. However it must be said that on occasion Schirmer can be absolutely brilliant, as for instance in their superlative “Scarlatti – 60 sonatas” (edited by Ralph Kirkpatrick), which is “the” edition to go for. It is a real shame that Kirkpatrick did not go the whole way and did the complete sonatas.Best wishes,Bernhard.
How correct a musical text is is dependant on the editor(s), no matter how many "Urtext" signs there are on the front of the book. For example, there is still not an edition of Chopin's complete piano works which contain all his original pedal marks, probably because there are so many numerous editions of his works, which is why going to the first editions isn't always good.On the other hand, it is dependant on the aims of the editor and the social conditions and perceptions that also affect the text. Czerny wanted to "transcribe" Bach's works for the PIANO, hence there are many dyanmic and expression markings. Unfortunately, he did not hesistate to change the text either, as it did not correspond to his musical rules and values.Many editions of G.Schirmer are of the pre-non-interventionist approach, hence why the company has a bad reputation and their musical text is unfaithful. Their printing quality is also sub-standard, but their books open up very well (apart from Kirkpatrick's Scarlatti Edition). Still, they have most of the notes, so if you're on a budget you can buy their editions. Dover are superior though, as on the whole they choose out of copyright editions that are very good e.g. their two Ravel books are probably the editions that most performers use; their Chopin is also pretty good, as it was edited by Mikuli, who was one of the last students of Chopin, and he had many manuscripts edited by Chopin during lessons. Mikuli also endeavoured to find the source, the true musical text, so you could say that his edition was one of the first Chopin Urtexts. It also contains pedal markings that some Urtexts do not e.g. Henle has the absence of an important marking in Scherzo No.1, but I can't remember where, but Mikuli has it.He probably just got sick of Scarlatti after the many years he devoted to writing his biography.