This is a collection of instrumental pieces by Telemann, likely ceremonial music composed for naval occasions. It features the typical Baroque clarity and contrapuntal interest found in his works.
Focus on the interplay of melodic lines and maintaining a clear, balanced texture.
Admiralitätsmusik, TWV 24:1 is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
Admiralitätsmusik, TWV 24:1 is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.