Try http://vis.versilstudios.net/etherealwinds-harp.html it's free for

Windows VSTi 64-bit

Windows VSTi 32-bit

Mac Audio Units

Mac VST

SFZ + raw .wav samples (you can load it in Sforzando)

load a midi track with strummed held chords rather than piano, you can edit/transpose them in the piano roll if need be.

OR Sonatina Harp http://www.vst4free.com/free_vst.php?plugin=Sonatina_Harp&id=2313


Win 32 VST
(7.3 Mb)
V 1.1
Win 64 VST
(7.5 Mb)
V 1.1
Mac OSX VST
(11.3 Mb)
V 1.1
Mac AU
(11.3 Mb)
V 1.1

OR Angels Harp Library Kontakt
http://www.theproducerstore.com/product/angels-harp-kontakt-library/

OR World Strings http://www.dskmusic.com/dsk-world-stringz/