I was thinking if it’s possible to add an adjustable playing grid for people with a bigger multitouch screen (5,7,10 inch). Going by the Sequencer Pad Grid, I found 6x6=36 and even 7x7=49 keys to be still nice:
If the width for the cells grid would be a bit more squared, on right side there could be still space for some options like easy transpose the grid an octave up or down.
To make orientation easier, every “C” cell could be colored, like Ableton Push does it with their pads:
That could make some HW devices with zynthian quite useful, even without an additional midi keyboard or computer attached.