Fully agreed on using SSD instead of mechanical drives!
If you plan on doing any microphone works in the same room that this PC will go, you should put more focus on making it silent. Starting with generating less heat.
The GPU card for ex. is OK for gaming, but overkill for a music workstation and will cause fan noise for no useful reason.
You might be interested in this thread:
Depending on what you meant by " for music composition ", your CPU selection might very well be also an overkill already. And it’s definitely not always the case that having more cores is beneficial.
The Ryzen 5950X is quite a beast, but twice the $$$ and harder (=noise) to cool. The performance gain is unlikely to make any valuable difference in “real-life” usage, unless you run ultra-heavy projects pushing the laws of physics! Not saying it’s a bad CPU, but I would not put my money there first. Esp. not without knowing more about the intended usage.
Beware also of liquid cooling!
It can be really cool… but also annoyingly noisy if not done right! (and messy…)
Get 1st-hand expert advise, or don’t go there.
Liquid cooling is not a miracle solution… you will need fans to cool that liquid anyway, and a pump, etc.
In a nutshell: an optimal machine for gaming is not the same as an optimal machine for music composition, and definitely not for recording in the same room.
Not knowing if it’s the case here, I’m just saying be cautious about noise/heat, if applicable to your expected usage. (recording)
You might also want to read this related track from only 30 days ago: