major fourth
musical interval with a frequency ratio of 11:8=1.375, not present in the 12-tone scale but present in e.g. quarter tone scales, named by Ivan Wyschnegradsky
en-GB/mɛiːd͡ʒə ˈfɔːθ/
en-US/ˈmeɪd͡ʒɚ ˈfɔɹθ/
musical interval with a frequency ratio of 11:8=1.375, not present in the 12-tone scale but present in e.g. quarter tone scales, named by Ivan Wyschnegradsky