Theodore Oesten's Alpenrosen is a tender and lyrical waltz, evoking the beauty of alpine wildflowers. The piece is known for its pleasing melody and accessible harmonic language.
Focus on a smooth legato for the melody and use the pedal to connect the phrases and create a warm sound.
Alpenrosen (Op.160) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Alpenrosen (Op.160) lasts about 3 minutes.
Alpenrosen (Op.160) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.