ðə ɹˈaʊd fˈoʊk sˈɔŋ ˈɪndɛks ɪz ɐ dˈeɪɾəbˌeɪs ʌv ɚɹˈaʊnd tˈuːhˈʌndɹɪd fˈɪfti,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ ɹˈɛfɹənsᵻz tə nˌɪɹli twˈɛnti fˈaɪv,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ sˈɔŋz kəlˈɛktᵻd fɹʌm ˈoːɹəl tɹɐdˈɪʃən ɪnðɪ ˈɪŋɡlɪʃ lˈæŋɡwɪdʒ fɹʌm ˈɔːl ˌoʊvɚ ðə wˈɜːld.
The Roud Folk Song Index is a database of around 250,000 references to nearly 25,000 songs collected from oral tradition in the English language from all over the world.