Piano vs Organ: How the Two Keyboard Instruments Differ
A piano and an organ both have black and white keys, so it is easy to think they are the same instrument with a different sound. They are not. They produce sound in different ways, and that changes how you play them.
How a piano makes sound
When you press a piano key, a hammer strikes one or more strings and then bounces back. The strings keep vibrating and the sound fades by itself. How hard you press changes how loud and bright the note is. This is why a piano is called a touch-sensitive instrument: your finger speed shapes the sound.
How an organ makes sound
An organ makes a steady sound for as long as a key is held. A pipe organ sends air through pipes; an electric or electronic organ produces tones electrically. Either way, the note begins when you press the key, stays the same loudness while you hold it, and stops when you let go. Pressing a key harder does not make the note louder. Loudness comes from other controls, such as an expression pedal or the stops and drawbars that add more sound.
What this means when you play
| Piano | Organ | |
|---|---|---|
| Held note | Fades away | Stays steady until you release |
| Key pressure | Changes loudness | Usually does not |
| Sustain | Sustain pedal holds notes | Notes end when you lift the key |
| Repeated notes | Strike again | Release and press again |
| Foot controls | Pedals for sustain and softening | Pedalboard for bass notes, plus expression pedal |
| Tone control | Mostly in your touch | Stops or drawbars |
Keyboards and pedals
A pipe organ usually has two or more keyboards, called manuals, stacked above each other, plus a pedalboard played with the feet for bass notes. Many electronic organs for home use have one or two manuals and a small pedalboard or none at all. Pianos have a single keyboard and usually three pedals on a grand piano, the most used being the right pedal, which sustains notes.
Why this matters for practice
On an organ, your fingers must hold each note for its full length and lift cleanly at the end, because there is no fading to hide a mistake. Practising on the organ voice is a good way to train accurate note lengths. On a piano, the sound dies away naturally, so you can focus more on touch and phrasing.
Switching in Hey Piano 4U
In Hey Piano 4U, turn the big dial to choose Piano, Organ or Choir. In Piano mode, notes ring and fade, so lift your finger when the light goes out. In Organ mode, every note sustains exactly as long as you hold the key. The organ also has nine drawbars you can set yourself; see how drawbar organs work. Choir mode also sustains notes for as long as you hold the key; see how a synth choir works.
Keep learning: Piano Keyboard Layout: Notes, Octaves and Middle C Explained · How Drawbar Organs Work: Harmonics, Tonewheels and Leslie Speakers