The phrase "art big on" is spelled as /aɹt bɪɡ ɑn/, consisting of six phonemes. The initial phoneme is the vowel /a/, followed by the consonant blend /ɹt/. The second word begins with the consonant sound /b/, followed by the vowel sound /ɪ/ and the voiced velar consonant /ɡ/. The third word starts with the vowel sound /ɑ/, followed by the nasal consonant /n/. Overall, the spelling aligns well with the phonetic transcription.