I made the graphic for a similar project back when there was a request some months ago and then I forgot about.
Maybe it could be a prot. for the interface for a sort of pseudo realtime sequencer... Pygame seem too lagy for a real realtime but maybe is possible to use the touch screen for record each pattern sequence and let the tablet loop trough.
Like usual I make everythin with vector so moving and rescaling parts to adapt to another project would be ubereasy (in case aisu would use it)
Otherwise I just post as a curiosity and for the alternative drumset

https://garage.maemo.org/frs/downloa....0.2-1_all.deb
Good job on pydrum till now