Casio SA-51

Useful performance functions:

- Octave shift: Raise or lower the pitch of notes in octaves to cover a wide range of registers
- Tuning: Adjust the tuning in 1Hz increments to match other instruments or vocals
- Transpose: Raise or lower notes in semitone steps
- Metronome: Useful for practicing playing at a constant tempo
- Tempo adjustment: Change the tempo of the rhythm and metronome to suit the music
- Reverb: Adds a reverberation effect to the sound for a broader range of musical expression
- Maximum 32-note polyphony: Designed so that keys will sound even when many others are played at the same time
- LCD screen: Everything you need to know in one place

Accurate pitch makes it great for choral and a cappella practice