It's in the percussion family
The string family is the largest group in the orchestral family
Vibraphones
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an orchestral group im guessing
Vibraphones are not considered a main orchestral group like strings, woodwinds, brass, or percussion. Instead, they belong to the percussion family and are often used as a supplementary instrument in orchestral settings. While they can add unique tonal qualities to orchestral compositions, their usage is typically more specialized and less common than the main orchestral groups.
Vibraphones
That describes a concerto.
In orchestral music, the main groups or families typically include strings, woodwinds, brass, and percussion. A group that does not fall into these categories could be electronic instruments or vocal ensembles, which are not traditionally considered part of the orchestral framework. Additionally, instruments like the guitar or piano, while sometimes included in contemporary orchestras, are not part of the main orchestral families.
A full orchestral score typically uses multiple music staffs, with each staff representing a different instrument or group of instruments in the orchestra.
violins, violas, celli (cello), and bass these are the main ones but there is a first violin group and a second violin group
No. Orchestral is an adjective.