Using this Phoenician letter for just a vowel sound is because of the early Greek alphabets, which adopted the letter "omicron" to symbolize the vowel /o/. The letter was adopted with the value while in the Outdated Italic alphabets, including the early Latin alphabet. Spotify is unavailable on this https://travisdmrwa.anchor-blog.com/17450080/the-fact-about-canal-infantil-that-no-one-is-suggesting