RIHA Adagio is a Dutch electronic organ with built-in Leslie speaker and fine wood finish. Similar to other RIHA organs, the Adagio was made by Benelux Musical Instruments, The Hague, the Netherlands. A fine member of those line of all-transistor Dutch organs that featured eight models in three console finishes - walnut, teak, and rosewood. All of them have standard features, including, but not limited to, pedal volume control, brilliance control, and reverberation. The Adagio is one of the once popular RIHA models, along with the Festivo, the Andante, and the Allegro.