MKS-7

TheRoland MKS-20is adigital piano–typesound modulereleased byRoland Corporationin February 1986, simultaneously with the Roland RD-1000 digitalstage piano. The MKS-20 and RD-1000 share the same "Structured/Adaptive Synthesis" sound engine; the RD-1000 integrates that engine into amusical keyboard-typeMIDI controllerwith size, weight, and features similar to the Roland MKB-1000. Both the RD-1000 and MKS-20 feature eight keyboard sounds, includinggrand piano,electric piano,harpsichord,vibraphone, andclavinet. Both have threeeffects unitsbuilt in: stereochorus, stereotremolo, and a three-bandequalizerwith a sweepable mid-range.