Punctuation, hyphenation, and spelling were made consistent when a predominant preference was found in the original book; otherwise they were not changed.

Simple typographical errors were corrected; unbalanced quotation marks were remedied when the change was obvious, and otherwise left unbalanced.

The index was not checked for proper alphabetization or correct page references, with this exception: all references to pages iii–vi should be to pages vii–x. In versions of this eBook that support hyperlinks, the links have been corrected, but the displayed page numbers have not been changed in any version of this eBook.

Page 110: “Albacetex” was printed that way; probably is a misprint for “Albacete”.

Page 131: “3/4 rhythm” was printed as “3-4 rhythm” but changed here to conform with the predominant form of notation throughout the original book.

Page 275: “English Cathedrals” reference to page viii was printed as “iii-f”; changed here.