Using this Phoenician letter for your vowel audio is a result of the early Greek alphabets, which adopted the letter "omicron" to depict the vowel /o/. The letter was adopted with the value within the Old Italic alphabets, such as the early Latin alphabet. Spotify is unavailable on this https://eduardozhlps.bloggazza.com/36052266/facts-about-o-sapinho-e-a-borboleta-revealed