The spelling of "gotten horn" is a perfect example of how the English language can sometimes appear illogical. The reason for the double "t" in "gotten" is due to the history of the word's origin, which dates back to Old English. The word "gotten" is a past participle form of the verb "get." The IPA phonetic transcription for "gotten horn" would be /ˈɡɒtən hɔːn/ with emphasis on the second syllable of "gotten" and the first syllable of "horn."