GR-30

Guitar Synthesizer

384 stunning instrument sounds (tones) including vintage analog synths, fat basses, nylon string guitars, organs, orchestral sounds, various ethnic instruments, and much more
Lightning-fast triggering via optional GK-2A Divided Pickup
Advanced programmable Arpeggiator allows for the creation of various arpeggios simply by holding down a guitar chord and strumming the strings
New Synth Harmonist feature adds "intelligent" harmony to a single note
Built-in reverb, delay, chorus and flanging effects
Gives guitarists access to the world of MIDI music, computer-based sequencing, etc.
Note that this product is no longer in production. Similar capabilties can be found in the GR-33 Guitar Synthesizer.

https://www.roland.com/us/products/gr-30/