The Casiotone 401 is a Preset synthesizer and was the first from Casio to offer an auto-accompaniment section that continued to feature on later models. There are 14 Preset sounds including: Organ Flute, Oboe, Clarinet, Trumpet, Violin, Cello, Piano, Harpsichord, Celeste, Accordion, Electric Piano, Frog, and Funny. Those last two are basically synthesizer-type sounds, but Casio obviously had fun with the naming of those. In addition to the Preset sounds, there is a built-in Drum/Rhythm section with 16 Presets such as Rock, Bossanova, Waltz, March, Samba, and Mambo styles.
