With Dan's vArranger2 software, free or commercial SF2 sound fonts / sound modules like Ketron SD1000 module, and MIDI controllers like Akai APC40 mk2 and APC Key 25 with MIDI light feedback buttons, I turned my old Yamaha S80 88-key synth and my Casio PX560 88-key digital stage piano into decent arrangers that can play styles from Yamaha, Korg, Ketron, Roland, and Technics in 2 different rooms.

The vArranger2 software covers arranger basics well, and makes arranger travel light by using a Windows touchscreen laptop, mini keyboards like Korg microKey Air 61, and small MIDI controllers like Korg nanoKontrol2 for MIDI light feedback buttons.

Thanks,
Paul