The first song, Longing at Rest, composed much later than the second, is a setting of three stanzas from Rückert's poem of the same name in four stanzas, published first in 1816 in Jugendlieder (Youth Songs) in the second volume of his works.
Second song: https://studio.youtube.com/#/video/QnNQr_yzDvk/edit
Voice: Samantha Oxborough
Viola: Joshua Monks
Piano: Josh Nesbitt