It's registered as a percussion instrument because each key is attached to a hammer which hits a string to generate a sound.
no
no.
Percussion.
Yes it is
The vibraphone is a keyboard instrument. But,sine you strike it with a mallet, it is a percussion instrument.
Harmonium
Harmonium
It is a percussion instrument.
Many percussion keyboards have metal keys. Some of them are glockenspiel, xylophone and vibraphones. Piano is not a percussion keyboard as it has a string mechanism as well.
That depends on what the categories are, and whether you're talking about a computer keyboard or a music keyboard. Percussion
xylophone
Marimba?