Musicians trust Henle's blue Urtext editions because they...
*provide an undistorted, reliable and authoritative musical text
*offer superb, aesthetically appealing music engraving
*are optimized for practical use (page turns, fingerings)
*are of high quality and durable (cover, paper, binding)
*contain prefaces and explanatory footnotes in German, French and English
*contain a description of the sources, an evaluation of the sources, readings and a documentation of the corrections made (= "Critical Report") in German and English, often also in French