The Roland A-37 is a powerful and easy-to-operate dedicated keyboard controller designed for MIDI sound modules. It does not contain any sound-generating circuitry and is intended to transmit note messages, program changes, bank select messages, and other MIDI messages such as Reverb and Chorus Send levels to an external sound module.
Before using the instrument, users must read the safety instructions regarding fire, electric shock, and injury prevention. Important notes include warnings against opening or modifying the instrument, attempting repairs, or using it in environments with temperature extremes, humidity, or rain. Users are also advised to keep the manual in a safe place for future reference.