Beethoven’s mastery in all genres extends to the sequence of music he wrote involving the flute. The Serenade in D major may have a somewhat convoluted history, but it illustrates the creative purposes to which Beethoven put traditional material and the inventive contrasts he embedded into this six-movement work. Both the Sonata in B flat major and the Trio in G major probably date from his years in Bonn. The former includes a lively Polacca and the latter ingeniously suggests the famous ‘Mannheim Rocket’. Volume 1 is available on 8.573569.