I found my way to Roland’s Ax Edge keytar while digging into guitar/bass synth sounds, and some MIDI things I’ve been doing for a while. The keytar form factor isn’t the important part, rather it’s an all in one controller and sound engine, 4 octaves gives some range and you can split it for separate two hand needs, plus it was actually cheaper and simpler than other options… plenty good for what I’m hacking through, but not all the way to full fledged piano or synth. Beyond this, there is a whole new path for GAS, just in case you have already acquired all of the basses and bass gear on your bucket list.