The EMW CZ-500 patch bank is basically a ROM box loaded with 500 patches for the CZ series synthesizers. This was an impulse/curiosity buy. I was hoping it was loaded with pads - but no, however there are a few great strings patches (one is demo'd here). Lots of very good lead and solo patches including a very good job on acoustic instruments (check out the flute). Excellent root patches for your own mod.s. Effect is the Chora Lush chorus pedal.