Mostly written for the four voice classifications of tenor bass soprano?

The four primary voice classifications in classical singing are soprano, alto, tenor, and bass. Soprano voices are typically the highest, characterized by bright and powerful high notes, while altos possess a richer, darker range. Tenor voices fall in the male high range, often featuring a strong upper register, whereas bass voices provide the deep, resonant foundation in choral and solo performances. Each classification plays a crucial role in harmony and vocal ensembles, contributing to the overall texture of the music.