when I retired I had my dream guitar custom made by STATUS in the UK. Its a solid carbon fiber build, so it's impervious to humidity and temperature for the most part. I had them swap out the bridge pickup for sustainer pickups because it's nice to get infinite sustain at the flip of a switch. Then I recently added a Roland GK-3 to it so I can switch between regular guitar and MIDI. Since adding the GK-3 I haven't experimented yet, but I'm hoping the sustainer pickup will add realism to MIDI patches like cello, that would naturally consist of long bowed/sustained notes.