Match the term 'Art Song' with the best description.

The term 'Art Song' is most accurately described as a song for solo voice and piano accompaniment, characterized by its high artistic aspirations. Art songs emphasize the combination of music and poetry, often setting expressive literary texts to music that enhances the emotional depth of the words. Composers typically use a range of musical techniques to convey the nuances of the lyrics, creating a more intimate and artistically nuanced experience compared to other types of vocal music. This form is particularly prevalent in the Romantic period, where composers like Schubert, Schumann, and Brahms refined the genre and invested it with significant emotional and thematic content.