I am off the opinion that amapiano music is just the right amount of mind numbing required to do a mundane yet immense/repetitive amount of work.
In the event that you need 4 hours of music to churn out some work too, here is my gift to you.
https://youtube.com/playlist?list=PLMdiWBFEYaVQWhuOlx0FTle9u3GQGyjuj