Yamaha PSR-J51

Yamaha PSR-J51 is a portable keyboard designed for beginners and hobbyists. It is a 61-key keyboard with a range of features, including a built-in metronome, a variety of voices, and a range of accompaniment styles. It has been used by many musicians, including John Legend, who used it to compose his hit song "All of Me".

The PSR-J51 works by allowing the user to select a voice, such as piano, organ, or strings, and then play the keyboard. The accompaniment styles provide a backing track to the user's playing, allowing them to create a full-sounding piece of music. The metronome helps the user keep time and the built-in speakers provide a great sound. The keyboard also has a range of effects, such as reverb and chorus, which can be used to enhance the sound.