Raff's "Beautiful Thoughts" Op.21 is a lyrical piano piece that explores introspection and gentle contemplation. Its musicality is characterized by its flowing melody and rich, consonant harmonies.
Focus on creating a singing melody with smooth transitions and sensitive pedaling.
Beautiful Thoughts (Op.21) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 7.
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 Beautiful Thoughts (Op.21) lasts about 4 minutes.
Beautiful Thoughts (Op.21) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.