This is the opening chorus from a Bach celebratory cantata, known for its grand and imposing character. It features complex choral writing, brilliant instrumental passages, and a majestic overall effect.
Requires strong ensemble skills (if vocal), precise rhythmic accuracy, and a commanding projection of sound.
Auf, schmetternde Töne der muntern Trompeten (BWV 207a) is rated Henle level 6 of 9 — advanced repertoire, roughly ABRSM grades 7–8. In the RCM system it corresponds to about level 8.
You should be comfortable at Henle level 6 — meaning you can already play level 5–6 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 Auf, schmetternde Töne der muntern Trompeten (BWV 207a) lasts about 5 minutes.
Auf, schmetternde Töne der muntern Trompeten (BWV 207a) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.