The bass viole ... or simply, bass.
By numbers, it's the string section. A full-sized orchestra has around 60 string players
The harp is a solo string instrument, BUT it belongs to the percussion family in the orchestra, as it is used mostly for special effects.
The bass viole ...
That would be the Double Bass, also knows as a Bass Fiddle.
3. There are two sections of violins, 1 section of violas, and 1 section of cellos.
The cello makes the lowest sound of a string instrument.
By numbers, it's the string section. A full-sized orchestra has around 60 string players
The harp is a solo string instrument, BUT it belongs to the percussion family in the orchestra, as it is used mostly for special effects.
The bass viole ...
That would be the Double Bass, also knows as a Bass Fiddle.
The double bass is the lowest part in the string section of a symphony orchestra. It is usually the lowest part in chamber orchestras as well, if there is no double-bass the lowest part will be played by the cellos. (Do not confuse this with a basso-continuo, which is a harpsichord part in Baroque era (1600-1750) music.)
3. There are two sections of violins, 1 section of violas, and 1 section of cellos.
A single string instrument isn't especially loud, so larger sections are needed for balance.
In a string orchestra, an orchestra with violin, cello, viola, and bass, the bass is the largest and lowest instrument. However, if you were looking for the largest string instrument in a full orchestra, the piano would be the instrument for which you are looking.
The string section in a piece of music is the melody played by string instruments such as the violin, cello or viola. The string section in an orchestra is the string instruments in the orchestra, again the violin, cello and viola.
The String Section
The string section.