What instrument is not associated with the Classical Period?

Answer 1

During the Classical Period (approximately 1750-1820), various instruments were prominent in orchestral and chamber music, such as the piano, violin, flute, and cello. However, instruments like the electric guitar, which emerged later in the 20th century, are not associated with the Classical Period. Similarly, instruments such as synthesizers or drum machines, which are more modern and associated with contemporary genres, are also not related to this era.