sehgah instruments, four-pointed instrument, four-pointed instrument, shur humayun, various corners and others, even music and musical instruments, and let me tell you about the local music that exists , various musical instruments, for example, the satar, the two-stringed tenbuck, and the reed, let me tell you that this instrument is now in mustahdhari in balochistan. we and in afghanistan a lot. these instruments are common. now you know some of these instruments , the wisdom of making them, for example, farabi, may god have mercy on our honorable teacher, allameh hassanzadeh amoli. every year, when we used to come to them and the discussion was about the treatise on music and farabi's book of music , he was completely aristocratic. you know that music in philosophy means wisdom. theoretical wisdom and practical wisdom, as they say , theoretical wisdom was theology, mathematics, and natural sciences. at that time , mathematics consisted of arithmetic and geometry. in order for music to issue jurisprudential rulings, he must first have a precise and correct understanding of music and t