Music in Islam by Darul Ifta Al-Missriya
Muslim scholars have regarded music as mathematical language, because it is composed of interwoven progressions. There are geometrical ratios, numerical ratios and there are ratios combining between both geometric and arithmetic progressions that are called interwoven ratios. Books were written on the science of music especially by the luminary philosopher al-Farabi who wrote a great book Al-Musiqa Al-Kabir [the Grand book of Music]. Music is a combination of the harmonicity of both strings and sounds. For example, when a person says 2, 4, 6, 8, 10, 12 this is an arithmetic progression in which 2 is increased consecutively. But if he says, 2, 4, 8, 16, 32, 64, 128, this is called a geometric progression because we multiply by 2 but not adding it. But if he says 2, 4, 6, 12, 24, 48, 96, and after that he says 98, 100, 102, in this case he has combined between the two types of progressions in which one part is arithmetic and the other one is geometric. These are called interwoven prog...