Joachim Raff's 'Aus Thüringen' (From Thuringia) is likely a collection of character pieces inspired by the German region. The music would evoke pastoral scenes or local folk traditions with lyrical melodies and picturesque harmonies.
Cultivate a singing tone and a rich harmonic palette to evoke the landscape and atmosphere.
Aus Thüringen (WoO.45) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
Aus Thüringen (WoO.45) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.