#1. The solo and duet arrangements in the key of A (3 sharps) can be played by lever harps tuned to the key of C or flat keys, and pedal harps. You will need sharping levers on C, F, and G strings. The harp range needed is 25 strings from G (10 strings below middle C) up to C.
#2. The solo and duet arrangements in the key of G (1 sharp) can only be played by lever harps tuned to 1, 2 or 3 flats, and pedal harps. You will need sharping levers on F and B strings. The harp range needed is 25 strings from F (11 strings below middle C) up to B.