KARL LEOPOLD ROLLIG (1754 - 1804)
Karl Leopold Röllig enjoyed a career as a player of the glass harmonica, the deleterious effects of which on the nervous system of the player he sought to remedy by the use of a keyboard. He experimented with the creation of other instruments, and was eventually employed under Baron van Swieten as a court librarian in Vienna.
Glass Harmonica Works
Röllig left a number of compositions that involve the glass harmonica, in addition to writings on the instrument and on his other instrumental experiments.