I usually stand at my keyboard when playing live as I think it adds just that little something to the showmanship. However, with 2 sustain pedals and a volume pedal, I’ve been finding that spending 3-4 hours on one foot has been throwing my back for a loop. I’ve been completely non-functional the next day.
All you lazy bastards who sit at your gigs, what have you had luck with bench wise? Drum thrones? Piano benches?
This lazy @#$#@% uses both
https://www.sweetwater.com/store/detail/Bench
also use and recomend
https://www.sweetwater.com/store/detail/HT730B
if you like drum stool type very comfy and has optional backrest/lumbar attachment.
Dave
I use a stool that is slightly too tall so I won’t sit flat. I stand a lot, but I somewhat sit on the edge when using pedals. I hate using a bench, and have used drum thrones (was a drummer in the 70’s) a few times, but really like leaning on the stool edge. It is easier to kick a stool off the stage than a bench…ala Jerry Lee Lewis. 
Anything Gibraltar - when it comes to thrones 