Expansion Board for JV / XP by Roland. Trs a beautiful collection of waveforms and presets. The organs and electric pianos are numerous and Varis. There is also the Mellotron, Rox, and Farfisa. A practical map if you want to organs and EP that ring true in his synth. The card is nanmoins difficult to find used, but all the waveforms are also available in the SRX "ultimate keys". Nanmoins, it seems that the EP is better now in the patches of fantomX SERIES (but there is little trs organs, however!)