Graupner"s total surviving output comprises some 2,000 separate works, including ten operas, a hundred symphonies, a thousand cantatas, 85 orchestral suites and 44 concertos. A significant part of his orchestral output consists of concertos and suites with diverse, sometimes very curious instruments in the solo ensembles. Among the rarer solo instruments he favored were the flûte d"amour, a flute pitched a third lower than the normal transverse flute, and the viola d"amore, an instrument roughly the same size and shape as a viola but with resonating free strings in addition to the (usually) seven strings played with the bow. Combining the traverso and hunting horn in the same concerto, or the viola d"amore and the chalumeau, was extremely exceptional for the period.