This Ballade, identified by its opus number, likely presents a flowing and elegant musical narrative. It probably features lyrical melodies supported by tasteful harmonic progressions.
Concentrate on achieving a smooth, seamless melodic line and refined articulation.
Ballade in G major (Op.174) 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.
Ballade in G major (Op.174) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.