Lenovo ideapad laptop screen froze, music is still playing windows 10

Touchpad doesn't work or any of the keyboard either

I don't want to force shut down because I have word documents (more importantly, Paint windows open) that I don't want to lose. Please help

This has been happening when I use Ableton Live using the keyboard for percussion (using keys a, s, d, j and k, and maybe h). Is there a certain combination any of these letters pressed that will cause the screen to lock or freeze? And if so how do I fix this. I really don't want to lose my (Paint) work.

Your stuck between a rock and a hard place… You have multiple programs open… Your system is locked up… Reason… " you " choked the computer… You either choked the ram… Choked the processor… Or choked both…
Oh and mashing buttons will only make it worse…
You don't fix it… Your system is frozen… All you can do is force shut down…