The presets will load on every K2000 k2000r and on all (every OS version) k2500, k2500r, k2600, k2600r, k2661 and up machines. KRZ (full compatible) and 10 sets in. K25 native format (compatible with all Kurzweil above with the only exception that with k2000 model you need at least the system 3,87).
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