From song choosing menu in Osu! you can save any song from chosen map
to previously chosen directory by pressing Alt + S.
The final effect is: You start your PC, you start playing osu! and you
like the song you're hearing and you just save it with one hotkey click
(program will start silently and will be ready to use at any moment).
Names of songs files are saved with the number attached to them.
This number is increasing with every song save and it's also saved
everytime you save a song, so you can easily find the last song
you saved by using the Windows name sorting in folder.
Don't worry, this number will last even with PC restart,
it won't start from the beginning
It is highly recommended to make program run at startup,
it will be completely silent and ready to use.
If this post will get some attention then I will surely try to update this program and make it better
with next updates.
How it works?
From song choosing menu in Osu! you can save any song from chosen map by pressing Alt + S.
How to install?
You don't really need to worry about it tho becaue installation is really easy,
and the error messages will help you as well.
NET Framework 4.5