 On March 9, 1938, Bruno Hoffmann performed on the glass harp at the London Museum in a program including Mozart's Adagio (K. 356) and Quintet for harmonica, flute, viola, oboe, and cello (K. 617), accompanied by Geoffrey Gilbert, Leon Goossens, Frederick Riddle, and James Whitehead.It was an "exquisite performance, in which the flute and viola in their upper registers were almost indistinguishable from the glasses, [which] held spell-bound a large audience, crowded over the floor, stairs and galleries".On February 18, 1979, Gloria Parker performed as a musical glasses soloist with the Hartford Symphony Orchestra at the Jai Alai Fronton in Hartford, Connecticut, USA.