Either: you are not a born mathematician or were not trained enough. Math is like music, but unlike music you need to grok quite a bit to get to the beautiful parts.
Relative to most, I've done a lot of math. I have an entire bookshelf dedicated to it, subscribed to journals for a number of years. I worked in cryptography for a while.
The only things I ever think are "why is this presented in such a convoluted manner" or "Why is this so poorly written".
The idea of "beautiful" is so remarkably far removed from the situation --- it would be as if people said they found it sexually arousing.
> I've done a lot of math... I worked in cryptography for a while.
Weirldy, that could be the reason. Doing something beautiful (art, math, etc) for $ usually ends up corrupting it for the person. I did not mean any offense.
Source: Psychology research I am lazy to link and myself.
And I wonder how much musical training or experience you have. Like mathematics, there is a lifetime (and more) of music theory to grok that will aid in the enjoyment of music.