Charles Gilbert Spross was a prominent accompanist and composer of popular ballads in the early 20th century. This piece is a typical sentimental salon work characterized by lush harmonic writing and expressive melodies.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: a true singing tone, with the melody floating above the accompaniment; careful pedaling — clarity depends on the foot as much as the fingers; and rubato that must breathe naturally without losing the pulse.
Beyond that, expect wide stretches that reward larger hands and clever redistribution.
Developing a deep, resonant tone to support the wider-span melodic leaps is the central difficulty.
Comparable difficulty and character — good candidates for what to learn next.
A level or two down with the same spirit — ideal if this piece is still out of reach.
Where this piece's skills lead: slightly harder works making similar technical demands.
Dreaming 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 Dreaming lasts about 5 minutes.
Dreaming 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 Berceuse by Rudolf Friml, Berceuse sur le nom de Gabriel Fauré by Maurice Ravel, Berceuse sur le nom de Gabriel Fauré, M.74 by Maurice Ravel — see the full similar-pieces list on this page.