As a Christian I thought this would be interesting but got distracted by your arguments about music being haraam ! Can someone tell me why something as beautiful as music be haraam ?
Peace and Blessings.
Welcome to the forum.
In a nutshell because Allah and his messenger forbade it.
You might say well as an outsider looking in that doesn't sound like a compelling reason but to understand that response we need to take a step backwards and understand a little bit about Islam.
The message of Islam is the same as all the prophets, Worship Allah alone without partners. This is what Abraham taught, this is what Jesus taught, this is what Moses and Prophet Muhammad taught may peace be upon them all.
Each Prophet was given miracles to back the veracity of their claim. Moses performed many miracles by Allah's permission. Jesus performed many miracles by Allah's permission but because the message of the last and final Prophet Muhammad sallaho alayhi wa Salam would outlive him his miracle would too. The miracle he was given was the Quran
The Quran is such that if you were to gather everyone on earth and ask them to produce even a single chapter like it they would not be able to do so. The qurans language and eloquence, knowledge of history, scientific knowledge unknown in the 6th century, future prophecies that came true all of this points to the fact it came from the one who created us.
Not only is it miraculous but it has been preserved letter for letter as it was revealed 1400 years ago even the orientalists don't deny this. It's not like the bible where they chop and change versions with retranslation and addition/ deletion of verses.
So coming from this perspective if something is forbidden we believe with confidence that it was prohibited by the one who created the heavens and the earth.
That isn't to say we can't see wisdoms in what is prohibited. Abstaining from alcohol is a good example. The misery that drug has caused to humanity is clearly evident.
Music I can tell you that it distracts you from the remembrance of Allah, I could say it makes one heedless of the purpose of our Creation. How it manipulates the emotions and leads to adultery and I could keep going...
I could tell you all these things but end of the day we are Muslims. We believe Allah forbade it as it has been authentically transmitted from the Prophet sallaho alayhi wa Salam so we say We hear and we obey.