Question: Would it be impossible to use an Iwato scale for a twelve-tone technique composition?, Answer:Yes, Description of Twelve-tone technique: method of musical composition devised by Arnold Schönberg to ensure that all 12 notes of the chromatic scale are equally often, so that the music avoids being in a key, Fact1: The Iwato scale has 5 pitch cases., Fact2: The chromatic scale has 12 pitch cases.
Step1: How many pitch cases are used for the Iwato scale?, Step2: Is #1 not equal to the number of pitch cases needed for the twelve-tone technique?, Wikipedia page for step 1: wiki: Iwato scale, Wikipedia page for step 2: wiki: Twelve-tone technique, not_definitive_answer: False, incorrect_answer: False