This is a variation on the previously mentioned piece, focusing on a slightly different harmonic treatment of the Bach source material. It retains a meditative character suitable for solo performance.
The performer must carefully delineate the melody from the accompaniment in the left hand.
Comparable difficulty and character — good candidates for what to learn next.
Ave Maria after Bach's Sarabande is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
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 Ave Maria after Bach's Sarabande lasts about 4 minutes.
Ave Maria after Bach's Sarabande 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 Ave Maria after Bach's Saraband by Shin-Itchiro Yokoyama, Blumenstück Op.19 by Robert Schumann, Am spinett by Christian Sinding — see the full similar-pieces list on this page.