This is an alternate cataloging of the work also known as WWV 64. It is a bright, energetic character piece that serves as an interesting curiosity in Wagner's minimal piano catalog.
The player must maintain a buoyant, light touch to successfully convey the playful nature of the rhythmic figures.
Comparable difficulty and character — good candidates for what to learn next.
Albumblatt für Ernst Benedikt Kietz is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
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 Albumblatt für Ernst Benedikt Kietz lasts about 2 minutes.
Albumblatt für Ernst Benedikt Kietz is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Albumblatt für Ernst Benedikt Kietz, WWV 64 by Richard Wagner, Albumblatt by Richard Wagner, Albumblatt für Frau Betty Schott, WWV 108 by Richard Wagner — see the full similar-pieces list on this page.