text: This jazz composer wrote a song whose middle section features a thirty-two-bar clarinet solo by Johnny Dodds.
full_question: This jazz composer wrote a song whose middle section features a thirty-two-bar clarinet solo by Johnny Dodds. This composer of "Potato Head Blues" popularized his mentor Joe "King" Oliver's song "West End Blues," and collaborated with Ella Fitzgerald on two albums, plus a third album of selections from Porgy and Bess. This musician organized namesake Hot Five and Hot Seven ensembles with whom he pioneered scat singing in songs such as "Heebie Jeebies." In a popular recording, this musician sang about seeing "trees of green, red roses, too." For 10 points, name this jazz trumpeter who used his characteristic gravelly voice to sing "What a Wonderful World."
first_sentence: This jazz composer wrote a song whose middle section features a thirty-two-bar clarinet solo by Johnny Dodds.
raw_answer: Louis Armstrong [prompt on "Satchmo"]