Right now I'm using Fluidsynth running a soundfont which I customized a good bit, but it's just not quite what I want; I want it recognizably a string section, 88-key range, rumbly power in the low, smooth but a definite bit of fuzz in mids and highs.  I'll take any technology, and will do payware, as long as it runs well on 64-bit Arch Linux.  Anyone got a recommend?
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Jonathan E. Brickman
Ponderworthy Music | jeb@ponderworthy.com | (785)233-9977 | http://ponderworthy.com