Harp Harmonics are NOT Written At-Pitch
I actually love this library so much—but when the harmonic “o” or the “harmonics” text are applied, the harmonics are played at the written pitch, which is incorrect.
Harp harmonics are played the octave above what is written: for example, a harmonic notation over C4 will be played on the string C4 (or B#), but will sound the octave higher.