“ This and the vowel-sound change from ou to ah, as in “abaht” for “about,” are only heard among the uneducated classes, and, together with other characteristic pronunciations, phrases and words, have been well illustrated in the so-called “coster” songs of Albert Chevalier. The most marked and widely-prevalent change of vowel sound is that of ei for ai, so that “daily” becomes “dyly” and “may” becomes “my.” ”