I use two keyboards live: a Yamaha Motif XF6
(upper) and a Nord Electro5D 73 (lower), both played through a
Mackie DL1608 Digital Mixer into a pair of QSC K8.2 powered
speakers. When the main house sound system allows, I run in stereo.
The Yamaha Motif XF is used for horn sections, saxophone, acoustic
and electric guitar as well as lead and poly synthesizer sounds.
Occasionally, when the Nord is being used for organ, the Yamaha may
be used for piano, electric piano or clavinet.
The Nord Electro 5D has a semi-weighted 73 key keyboard.
I use it primarily to emulate acoustic piano, Hammond B3 organ,
Clavinet, as well as Rhodes and Wurlitzer electric pianos.