There are some other cases aside from italic type where script a ("ɑ"), also called Latin alpha, is used in contrast with Latin "a" (such as in the International Phonetic Alphabet).
ðɛɹˌɑːɹ sˌʌm ˈʌðɚ kˈeɪsᵻz ɐsˈaɪd fɹʌm ɪtˈælɪk tˈaɪp wˌɛɹ skɹˈɪpt ɐ"lˌɛɾɚtˈuːfˈaɪvwˈʌn", ˈɔːlsoʊ kˈɔːld lˈætɪn ˈælfə, ɪz jˈuːzd ɪn kˈɑːntɹæst wɪð lˈætɪn "ˈeɪ" sˈʌtʃ ɐz ɪnðɪ ˌɪntɚnˈæʃənəl fənˈɛɾɪk ˈælfəbˌɛt.