George Gershwin:

• George: /dʒɔːrdʒ/ (djorj) - This represents the common pronunciation in English. The /dʒ/ sound is a voiced postalveolar affricate (like the "j" in "jump"), /ɔː/ is a long open o (like the "o" in "law"), /r/ is a voiced alveolar approximant (a typical "r" sound), and /ʒ/ is a voiced postalveolar fricative (like the "s" in "measure").

• Gershwin: /ˈɡɜːrʃwɪn/ (gursh-win) - The stress is on the first syllable. /ɡ/ is a voiced velar plosive (like the "g" in "go"), /ɜː/ is a long central mid vowel (like the "er" in "bird"), /ʃ/ is a voiceless postalveolar fricative (like the "sh" in "ship"), /w/ is a voiced labiovelar approximant (like the "w" in "win"), and /ɪn/ represents the vowel and nasal consonant sounds at the end.

Variations might exist depending on regional accents or personal pronunciation habits. For example, the "r" sound in "Gershwin" could be pronounced differently depending on the speaker's accent (rhotic or non-rhotic). The vowel in the first syllable of "Gershwin" could also have slight variations. These phonetic transcriptions aim for a general, widely understood representation.